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 0x04223f06e6645e7659064d8f7eb34586a0c6b8239ba90bc311b0b6ca8462d1ce. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5edf635-a38f-4a20-aa00-3a1d101f409e.json and https://artists.proofprofile.net/proofs/artist/e5edf635-a38f-4a20-aa00-3a1d101f409e.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 0xaf9bb16c6d28bfc64f5da04af5e211bd9a162cdae8790c71f01d12f2c33a5ecf. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZMWW2101836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5652de15b8eb043e44511eb43114a2a5d5e57ae74b6f5fdf90c79f004cb43f1d. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZMWW2120877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c680efbb985b5ea6a45513ca3c65a27d4cf9f07e745eb52b46bd6e17974f1e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZMWW2142436.
Lemon Pepper Steppa (feat. Rell Houdini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7d40bbbdef5240d4f4b04798e44da1e121fca9023b3d6bb4153b76dc7d06ba. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZMWW2442246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dacd135c4b4e2c26fbe3436adb1d083606c74f2ce49b9e84aa0bc5a7f2bc803. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:52:29Z), 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/QZL382231354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2994bee8450328d0061a0d171b77a5de6d956a97f6f398aa42ea613a0e3a416f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZLL92219740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940b134f75e670817640c14eed2f4f8d1c7f17ac7b94410a557196ed3cb2c9e5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZLL92278576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234959a957479279bd65a2eb8f088f07ff3470f72930f379af0bbfb05b784ca. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMWW2314921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1256eec01fefc10788fc608e6da008c6141cac22ae7d2bf17a7970c6496130b3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM22408577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17543687d07ccddb1ea9b597b8f2081df864f21b857828eb96ccf92c23a624f6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM92449928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08019a01b9b775e67626c6e57727abe38b0ef2613b5c0154354b25f8991eadf1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM22466336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8155cc0a45dd978cd7e1553f61a2252f4057eaddc242dcb7dd187b9ba172e80. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/USHM22471183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aed896256452575fea448825375060c3deff3bda44dfe55a931b6b6ce0fbc9c. 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/QZTB22417317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3ca733ce585adbbd6d7d4418554e4d3277ccc1c2103c33b366572d1848b83c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTB22417318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a54e21f93cd88be95bed891ce61de09deb1b2c1f0b4bdd1dafcb856a183ca6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTB22417319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa16fc4f4de158465d944fd4b9062bdcdd2eca9ed4791e90e70f3408d632f48. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZTB22417320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fad73b4ffe0368ee839f6a3567f9cc88a2c596b57c03aa9b3068d5f2838fc5. 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/QZTB22417321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f1d5b9281e7f3e66d76d59fbf47e0369b054112f0fe8a4cc1cc8b743ce1535. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/QZTB22417322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12e7aa9ec52da50829dfed2b945b61ea054b5ab436a794a9896c6fd26978d13. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKXN22485864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa548dd76e2131b1b913e834247cd3e17727f14dac7cf1aadad802ea74b23f55e. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZTB22417324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf60f2df1fefaabd58c543130c125a5afb38ab0df6c36514ea87bef538a496a1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:44:23Z), 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/QZTB22417325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e17e595970b4663ad09aa84b2d8720dd18af9bbfa37faaab0fff64c53ab0b0. 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/USLD91774730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7dcb81354e733df2205a1e9892621a8c11ae710f4dbfa9fb9f05fd58282e8d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:34Z), 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/USLD91774731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72626a397816e7ecd9515618a945b83c818682deeade92ffa3f2cc83701fe25. 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/USLD91774732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e76728cd74c76ba4fce133806e1240f59f3b010ef00c2c089767c86de60ada. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USLD91774733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fde6237e33c6694cd80689a10f39fa8df5af0c64874c92df9acdcd1b5d3aa41. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:56:23Z), 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/USLD91774734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c7d6da04032918ab3041370cccd62d92232377f6c0ce8dce1210bd594c168c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:25:54Z), 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/USLD91774735.
Triple threat (feat. Dallas4oe & Rell Houdini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2e9bfb4ae2b76a2a424808ff867b84db6e97153607262fc37e808563e69bdb. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USLD91774736.
4 pipe (feat. CTS T4, Beeski B & Leekman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea5e601067004ad0dbda3a844ad667bf85236d5f1efd6eb491a208f27654ae. 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/USLD91774738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9f81c5f5c71be70280f216ca137dbc77e2da58b28e69a9b4d7ff5a5529ad0c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USLD91774739.
I Smoke (feat. Sumo Dub, CTS T4 & Rell Houdini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22db82a4c446ad2278073c1e48a453d9ad8b33c8486a15aaca1cc01baac5713. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USLD91774740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01233b5f9da5286012c5ab60271843eee74dfe74a86bfdb45d7e76ab8bf04874. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:44:14Z), 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/USLD91774741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd1d34c663ce8aaeebab59c22b0f2a006fb82cbba83609a918ffadf7b059da7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USLD91774742.