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 0xb9ecc37f8a1c777982312e0e0c69650644ec52d7489622884daa536aab3fae9f. 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/b37718cf-cadd-47d8-9542-e13acf19675d.json and https://artists.proofprofile.net/proofs/artist/b37718cf-cadd-47d8-9542-e13acf19675d.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 0xe82a04c8b75b353adfa7930c7c22a89a2f80a18c0f94c5b47961ec2c5ccdefdd. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZMEM2234824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4a6ddd8490c047f2526a8a8383dfa5c58df96bd9f391c46ac2e7390ccfa9d4. 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/INW262317545.
Bairi Piya - McDonald's i'm lovin' it LIVE with MTV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2d90f0bd725953059f16110bbfdf8a2908c38ab213245dba8f159848c32567. 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/INE182302628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3e846b221c202b9a50857622bb32342e2630a1fbcee4c3646cc8b935b7c0c2. 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/INW262317842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01763fffcba1a9b9181216b6dd06b8ff73d25596da46c44ca3b6dffd8eaffd16. 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/INW262318283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e92e7e74b79f0737a45924ca54b6232456c6251b827a714d3a1c2501db352e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:40:26Z), 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/INW262318410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c63a0f8f2644a75795239566be2d79f50ea2d1fa05727c9ff857a9674858863. 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/INW262318411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6e77938110dce323751387cf7a992dc709abc4619cab462f9af4d573c1c9b8. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/INW262317590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b738c470d5a41d97edf3f71a436fccab5cc86987f55fcefb189c53836481ad. 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/INW262318413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911e6710f8dd7565ad55d47054580687dd4f782ce0072a905a3000d3235b9bad. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAID2402098.
Crew (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ee26b902d28b1ccff3dae49ab87d4d9fa3e620e1e11d1114050901c195da1. 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/INT102400926.
Who's Your Mommy - From "Madgaon Express"
Madgaon Express (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dffdcc0cc884929a95dd97033c6a80c5288d6626636d9157085d2bc1f3381f. 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/INZ031414755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5b5cecfe3175ae5a1a6a96f2249b5617886de795a3037d12b49ef8e32d5ff. 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/INUM72400841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ce2dff6edacad415c19122fd1cc9260c1319a23f52728522cdb0e40a6154b. 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/INE182220205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a394560c5b8f6589e71af027156bf5e8dba028f3631060d9e9cc288f226aaf. 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/INE182308356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc803bf204edf264977e0590445e3a13b01fc2fd896c0adb54bc9400be74e95ef. 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/INH412212161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e44c8ea69a812b2e66c315772d9e46a979a973f5c0ebcf397c8f787e34e4d. 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/INH412212561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c28f58e8a9b08ea58a5c7fcb2089ff1d0f9bdf806fcf3980229163405fb40c. 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/INH412213007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6474037845ac1fb92642c582a0e851d1a56707647afcca73da1b5014b0212d98. 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/INH412213330.