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 0x90ca24552ba9a5e7f58085044dc08764f8f2abd0f5a0090b27a3850fa01f4126. 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/45b140a2-15fd-4975-aa51-06abd6413d1b.json and https://artists.proofprofile.net/proofs/artist/45b140a2-15fd-4975-aa51-06abd6413d1b.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 0xe46b6d2ddcc818777eaf16ed0236871ed4d26bbe551e721567d763a8b468a790. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BEN581700971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb153552d027348beccef2d1efb38830a25afb1572c3ca576a9cd0be25bba526a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/BEN581700972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c828356082db19c2e5377f30a04210dd9354f6a321c8fbebfcaf026894c87ea. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BEN582000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061e85451fb6d65bd898654da45f39a33967ce5966cc02c8f860af504694a1df. 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/BEN582200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac3903ea5f7ff9259a9a1c6f7f9c3b73f3a528624c59f379f04d1391d66baa1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKQU2329008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cb8a34697853e8e1aa400bab2d356d18d817e72c8c7066e26ff2f61d7c4f12. 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/GBLV62306921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b089ded2f4561624a2a31a212edd1799e98e739dcf87f25392e6c78dc4202ea. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBLV62306923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379dc41ba137914395a2d3dbf39fe432e733eaf68e26986b1c5f0cbe9c807383. 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/GBKQU2454263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71133d71077488a0cc561928a51eb72ed6a11d5511d4fa09afbe62027f38e6b0. 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/BEN582400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243c340ea821e9de17789aa22a78102c1c29af4820c3638cb979d549b3ebf8d8. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:29:59Z), 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/GBKQU2481459.
Global Underground #44: Amelie Lens - Antwerp (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1e5ce8704dfe1dd4f0c57f505de2ca7e38f66ac4734ebf01fced2f79d8e71a. 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/GBHFW2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab9f868a6cec7a08375fd9bbf597a0bc23aa854679123cab97c1e6b49a6e49. 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/GBHFW2200078.
Global Underground #44: Amelie Lens - Antwerp (Unmixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33c83d30cd70e9fdee0dcc0afb962747afdb4afccd89c4be9741000b6d4d529. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBHFW2200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c47d16fff9c545276f1decc385166458a3b6a08e2fe583dbefb8380309194ee. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BEN582000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb60e0df82cca3b1915711b4b4d89c6604ffd93a3458527db4603374a6d4286. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEN582300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71133d71077488a0cc561928a51eb72ed6a11d5511d4fa09afbe62027f38e6b0. 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/BEN582400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9521eac13ddab83dcb9bb5d6a709518700b9225aff80324d3f8dffb41fe441db. 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/NLCK41042015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c56b41941c739b9090e54c9f4fb43a4c06a9631958fb38ff636899cd54835. 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/DEPI82500688.
Confronted - Farrago Welcome to Goa Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0910676a17eff4ce8060a7e79fcbf3be9f92a7dbb02fcaf5b84e57a9ed318fb0. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DESR41900323.
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 0xc41740e1dfcc503b5e25f68bccc6c9da91c2d1a22a9139cd13740ac208a941ae. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM4TW2211609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47c303dc83e890743e089d82171ac4bf1fc352d9f76448928aaa1ab6c475f0f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BEN582200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967bb13a613407d487c526f0081532dd375c69064e7131acac20c5145967ee79. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BEN581900935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a5fe97362a490506a00fd9ef9c16610631b4a5dbc9e41ba7c83e843e750a1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BEN582200106.