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 0x70b992795e15e0e376fafa0f602815d1ef13a03828f588b8ee173df80bbbae67. 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/1d94a17e-c4e5-4324-a7f4-c1e47c6bb26f.json and https://artists.proofprofile.net/proofs/artist/1d94a17e-c4e5-4324-a7f4-c1e47c6bb26f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New York State Of Mind (The Voice Performance)
Take Me To Church (The Voice Performance)
Over The Rainbow (The Voice Performance)
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 0x51bc1948a7d3e48e3834703b089afef3239385f3ba88dd9a31812137467af76b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:01Z), 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/USDY41868254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7038b3bfbd6fe7f2eb0f10c41b43c38e9c46357646895f98e22cf3913aa82ea. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZTAT2218381.
Dancing With A Stranger (From the Showtime Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a6c4940c27ed615d6e9a14e11b5aab9423275a62b7047f5dfff6592db34c05. 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/QZD7E1800333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786c046dc5c4a03f795a637b84f67750045f2f055a8275bd23ffcaa8d4d973b7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GB3AD2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa557c3c2cebbad1ac282c94e060d6dd54305abdefe1783867b2c0368f5a3c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBDMT1800330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbf4d9e32a4f8ed143f0ba179e6e034430a67bc9a4def063c7b812c1799fb5c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM24S2009043.
Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20e9489c1ce850c2a3a0333134cb38e82e9277cc502f6d72b9a2bae1e10af3b. 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/QZS7J2109072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2726067196cbc38d997a263ec00984e124ba289c3a7f4cd0667795e2a0ebd2. 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/TCADD1762893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf57485a12e319dfa9acd1b22825fa49332cfc4530585895f87df5dea758bc. 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/QZBRF1807586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dfa5b1ea75aa8abcc43c175b4b8e4243acc401f5d01e20c6a8acddfd3afcce. 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/QZBRF1807593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7250fa6ed7374890f52feb04a25410558d080fb9365f9a8e228c2a10c9a87af8. 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/QZDA52056520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf57485a12e319dfa9acd1b22825fa49332cfc4530585895f87df5dea758bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZBRF1807586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a20841e20129c683d1c02b7a8a5baf340fda6e00e42cdf690400e1b11d912a5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QM2PV1745851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4bba4460716774b2b7c105d6566d25c6cdfa76e0c4dc2e2a9ee09e8e087d26. 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/QZ9JZ1775088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd963fedbc10075dce6dcc02fc0000b49e14fe2207931d4ab3ad5ab6cb147a9c3. 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/QZGWW2124681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9994d09c075c6a7489980ce0abf96bb78fbb4193ee8e4691c26e6a8662841a. 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/QM7MR2000787.
The Music of Ray Charles: Live in Los Angeles, Complete Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71fcccef7020ab9c3d5f059c93d1a764910ecaf5fad35cc2258fbb196054bb7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZFZ32117043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a20841e20129c683d1c02b7a8a5baf340fda6e00e42cdf690400e1b11d912a5. 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/QM2PV1745851.
I Was Made for Loving You (feat. India Carney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372044b3fbce743e4511e8ac7a9c3473542a5608a4911e619169df74cbc5ebd8. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCACI1538989.
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