The Palmer Squares are a Chicago-based hip hop duo composed of Acumental (Ac) and Terminal Knowledge (Term K). The two generated a following on YouTube and have since released four studio albums. His
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04633d10a341967461afcf5ad2248abfc7d16cccea5601ca440c96f31a025ce. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8dcb2cec-fc77-484c-8f51-f75920c168af.json and https://artists.proofprofile.net/proofs/artist/8dcb2cec-fc77-484c-8f51-f75920c168af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf1a3f5500d00c1db79a0583fcfa90dcc6a28249a3c39e1d7d4b92f4b85702b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABF1288103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8a9a97e8eed0d0678cb39415d3f5e0b2fb3a67a66698b50c3a88592606509f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1267810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a0991ef6bb0623a78767c935abe064e321e205120f2636dee8ed6601031001. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1267816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcf6143cdc88cd44c9ba21d004a9ad638f7964f0356f8beb6d9041d86da6e03. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1267818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff99cf894b3210b93dc52ff38100eaf5c1f1845f2f2aba5797964faceb88361b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1b0b307abb9470b9e5158bcceda8e8f36470f9f05da82ced589107b403e9ae. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe848b3c36cd97131b5b73e9aa379b6ca26cdd13ce584964b48a458a49ccc7a34. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1300010.
Consistently Inconsistent (Dome-Blown Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd732f01947e9439093df2b461b9b2dc881d28c39fe8939e6cc9cbbcc1b8f989. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e522185335b67dfab35240f5bb795c5fd342b089656fc7e07fd33c6e73a06. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b9c366188ed29b981db63baf08baeadb1bfac01b9a3b204a3e9360364c9831. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012234fecd10fe8e59cd7ea264cbf87266430a576c682e00edc7fc200831f642. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e60cb0f770ca3037c607e15b418b2bdd60070c8fad30b3e899e564cc4e4ee3a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c194d7d3ca914c8b8a1db703c7e1c58dc0b408c59bc7fd1b2659a1c33701f7e. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8940010c800d7afb7661509ce73668c75afd8faa63a6e0c13fa9edea2c7005de. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1532975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeb86a2db994412a90be69cc5c1723acd59ae1776cf4c1d781452cefdbf4239. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9e6be9d06f591e72b7307543651ea57e1d20e5b55057ab4e59ceef3ed8caf2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ff6ff9adc54edc3ea519e9a065d03e2a5632a95e742973eeb8c07c09480a31. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7854874340f81401d7616d3f50aaa7638129dd0ef5480444646d6e148b6eb644. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7039700631db43b50baf7c709c0f45d1909770ca8f64a0fc06c263302654dfe8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530490927c96c9845695c3bd35bddc1eac378efa584fd45f8a18b0b7c656d8e. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:39:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9JZ1751893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298a4a546034e212cbb56379e7d752c2fac41e3443c5c616cb0297548e35e61e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae4115358ae1572e65ade2aa8e0f46b1083e0aa60f70f9d956895f39a99bd24. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abb98ce903129ec9e2c1f8a5ae27c7677de3b89629710a72cb933b3533461fc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704c63767f0c9c4ab79131ac8ad658bde6fef9431a01189f5a9c86f4cc187f49. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:04:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcebfd7018dc1168ea590af2dddb10ef7c65713332d926f5c144e6d36918b56c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aada3e47d069ad4ddda43883b1b7375d831dfdab8a61f2b8f0d2ee93a592d5b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b4dbeff8f546e2ebefbb12884af3fde7fc2c4cf8486b5a6d35915b2d828938. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMPKX1802166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db8726549efd80c3f180060fe725133ec8ef68787151c38b622c75dbeb36101. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81839821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5654f71403f861897ca553dc4ded9605e924e7f2bc413aa398103442e2602c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMPKX1802168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c09c57d6095cfa2062e1d4b8b104e1c5371a2a0399cc2dfd1251fada522483. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMPKX1802169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5864d4c0f2e45e76e89772765542b502581a1a5b92201c5cf911bb6b5dd13f. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN41949057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1274a8c3b019c9a31bd207139ef652fff1a323844185b57be5ebee0da834e9ca. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355c3c2767950783aecb2fd7c9495fa852022165950bb96fbf798d7b121c67b8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401f6e0e83f44bb2f5d75239936ca937c53806228e9f27e6c6c0f5f16e980dad. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46173e128a548a4407ab32039ae8f08dfa228e1d508b02d4284e0f4171665f9a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb43bdc27a5c5eb252a24f1cffd7fbe6ddcd541c6d3733e3491ebde550b297be. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:38:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff4e6d3f05ac3479880feaeaebed33cd2d458fb014aaac63b5b23b08ec47484. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef824178eb5ef863ff4e7befab801a7ab615a7b92f6a2528403623084874175e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42023493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb521d4f3ab4da6e1e88475c50744ad8f3f0e6ceb53c17223a1160f188f98c45. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:00:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52119722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2096e25ddfcc3cb1c73938a187b54fc3118b880873bf3976fd9b1eab6abc76e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52119724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aada3e47d069ad4ddda43883b1b7375d831dfdab8a61f2b8f0d2ee93a592d5b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCXV1800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d53171111dff00cdd9d1833a70ae2fc8f7718e4e67b20c1411bb5a3857be6d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52119727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc192670f12367879a50e0b52cbbeb0ebc86ebd4cf40f4fd8cad1de1dc68615b6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52119732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3308d1efc19f0936c5f76ac1554457d95f13c587f9851c4572936fefe685e561. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2185106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb751bac225ffb3dba03d3e56c30c9412754f622cbef17df456a72f8520e40bad. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2185107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcab45055636d5ef1968b73a7e37ee7e2533c571e7f37e68aefb8404ddd67f2a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2185108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e070617f059daa6c0aca660d8f734b4da2c926d201d99ab65c49e37db74ee7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2367928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77747c168d5020a851e90b0ef49a5ba54ec09bd496e3d473fe5515d7fca2bad8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2229033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa03acf305e918001b80823ca405824b2cfa0a6c390d35e7ea78d3d12788442. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2351630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a39a4b7b385871d155ec524b0436be65b8a2f50dd5223c30e22e7d83153ad38. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2351631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bc13f203791602ac37d802c8679f8eca5ff176c01a983d16ee128a42ccad6c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2351632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba5e39d519b5e25ae9ce787ebf030380b24d6ec67f97d51016d7642f9f7911e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32376305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5906cff26dcf8374f369ea07521916fd950e6c418be0d1e2f9c65354b689e6e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2351634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49163b0a323c1beb8d45324073fab4fa788d9c2c63ac08e73f92cf7e681ddf0. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72383200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ea493eab873779e08b8a5750bc5222cfce98fcc07d565cd46715ec445f7cf2. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2351633.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d406f2515a1dbf08d94ed4f55e3045545cac39441b583de615c67498db4dc4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZHR1800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64152f9dfc177cc49d439442ac1b34c0aad52a1d61ae0626fc65847d747d7244. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEO1921649.