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 0xc566a5d4e35d450c1f2042a9975280733ed329a7837b812416c46d91d1ce121f. 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/6bca31e4-00f0-4e02-9a48-12d094d8938c.json and https://artists.proofprofile.net/proofs/artist/6bca31e4-00f0-4e02-9a48-12d094d8938c.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 0x385b9a52fb502f82c28058babcfce7ffd945ae55641a6e81a87e2150bf6e0166. 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/FR59R1466985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bad32997a5eac5742b4ab044df436bcf8832193c129482d87c3d799dd5269f2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR59R1574368.
Savage (feat. Crichy Crich & Short Circuit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87979aa71c37074d7fdd9ea5931b5506b924086d374e5210e425c571f6387a4f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:01:12Z), 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/TCACY1728002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663e585310493e033d37fc7882cc5e90ae397582b0ce00c4dd92fdd2aa3147b1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CA5KR1554998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71ff52ebeef97bc5c945779dfa77add2938f660e4905164f2f075047eb2853. 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/QM42K1782099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5217880bf54bbb9bc8c8d1ef559672a39a0bbc87703f493ee19130fbebf51256. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:57:46Z), 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/USYBL1701488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fe13cbd7435f838c75b5dd60c47ef0d13bb43a463b13b2cf974131a4d40870. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/CA5KR1718449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06439f6707e864518069c16bf1a5d446daefb3d3389f87c25c0b69826fcb2539. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QM42K1859471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d0bd3afc59ab46641935eecb94ae72a408b21e4cbbb808025a7e754ea67b14. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:04:07Z), 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/QM42K1867995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3be1d3f04b07bb086955433cca50d6eb67721f6c6f886a0c2bba5f632539e8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QM42K1828377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d7b24989406905864939a655567d4fe0095d5038c428916c9b9954b7c0f964. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QM42K1883630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a0ea671c038535547b2fe1e9c190f7ba40ee4cb3645c49d35e46d9c3cd57f1. 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/CA5KR1911494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe781aa14d58d33909aacf1fa10bec6e12675116fbae047d86ae09cb729f0c4a8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:04:42Z), 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/QZHCR2000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7ec85f243b170de8a946f8c1ba960f80acc7cb52093f7cb95ee13bac4ab413. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZHCR2000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080b78458d7eecc970ac7a6df757bec18d842bb67d64ccf2d36da3f6bdca11a9. 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/QZHCR2000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5db84824b2c88bf8a2b7309c8890594f2a8a9da560c2ada83f40e3c89d2f5ea. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USA2P2203195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a45517a9f50128059eaab0c1c93235c4f0ae712d39f23e4ebb648ee57a4b9e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USA2P2211022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c55754625c41ef84fe22bb43b5c35b9fdc9893067c0db7ade91fbc153974952. 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/QZ5FN2349168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8295d927da60a2555be1da0d7a93fee7002a93004b81ea499d6edb467915899. 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/CAUM82000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be8dfc0c89207f0bee4daa1361a03b435312d84af379fd2981aadd85d52dcf0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFPL2100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a22b5b9d7f1db8ec5116472dd435cb88b16e0df06135a5e06981f5e899c8367. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM71708953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bad90b162c23bb0e883adafedf04e8e8f55a62084c9ba1fd1d4bc4a59916fa4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR1808492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74338535a5492cc78e2614385765b7a643643268ba35d16cbf92888fb0e32727. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM24S1845632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0558542320a90f325d5d978e159ea4a4dc37b2a09014e2c278f1d89da1f30f. 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/CA5KR2316931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db56aa4817dd05da98da7558a6453ad441468771fbe36f62afd36d3ff72d880. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA5KR0036101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1314500748070b48819bdc4df67fcaaa384d4d9b8c965bba3e009cffb90be344. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USZ4V1600257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8378badf922cdedd4cc36ea29436491a6462973922eb8eca9d4736aad01363a. 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/CAUM81700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce7dab87d04d9f623aa63f60739abd825cca9c3e807e9009bc342f7dd9f0b8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHCR2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6f2141d088eed035c30ff6b479cbb505d9c24e8b78c87cece5e96a23cfa326. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/CAUM82200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc334ed91a5cc2362ff0e57a69f382ff476e24d58bf50df6ad02604910d7beb40. 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/GB7YL1710009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b563a46f93235ff844ee51ead899e8a396bd9ec057f19037d9e47090ced59ad. 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/TCAEX2067942.
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