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 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 0x1be7302cfb61caa43db3b2043dc50530fde8910cfedcec89dc72ff5f2bed5f94. 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/414d3341-bd50-4cdd-9546-7f015dd76ab4.json and https://artists.proofprofile.net/proofs/artist/414d3341-bd50-4cdd-9546-7f015dd76ab4.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 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 0x8aec3dff8d3ad2a0216fcdc8cd7aa894a565189487e83dc73d01e157bb1ea9f9. 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/ITM382100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bc6ae7a52526764846f61546b3924c2e72dc91e01f3794cbf4dae92f475f4f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ITM382100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f67234b9260611aaa884b356a8a02264e462d60fa049c2e0291a0c2462863d. 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/ITM382100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca017f8ad24ff06fca9f8e504b80bd252b0c8a0fd9d76ae297ff31812510868. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/ITM382100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee59d7f12886e2c6fac1a7eb55da954b43e20d0a7250f3c3d842b0935f1e71. 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/ITM382100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5321a1311b1d3230f81ea6f07968df1d4f691b2bb13db2731e526fa57e57482b. 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/ITM382100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4278fc285d637002b59d3cdb07dc335a8e0eb43ae60a8b08eba2af89e8f57bf. 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/ITM382100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f6f931fa7c1289d208e80cdc03db31d3fe0328d62ac14b64da2c783a43f0a0. 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/ITM382100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86e643ca49950700b1216ef51194e6fbb82bbc333e50c1026b18a7d4cd49b6f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ITM382100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647a5b55a8ce0d89513bd5fc93d3a3c2e535fbd1098380d885fe988942f0e43e. 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/ITM382200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb044df20cc86e26a6831a7ef7031355f3b7365e34ffa11a065f4b4e80f3376c5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ITM382200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ec5fd50da1d153f78f972d48e8887348b0d174e82bb5b34e6e7b2119c76a3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITM382200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bde57ca4d8418c7d4d180355e857dc18c98fec1caad72c588880566a2e97921. 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/ITM382200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d33e29a63bb5906ea7b3953253067d80928f5f363129918518e8c8afe28b2a8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ITM382200023.
ANACONDE GALLARDO (feat. Macello, Radical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5e7d79b9fd9dfd77dae13bc13b8928d802c91fd12e384c88f3a0b909dc73a8. 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/ITUM72000855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7128f0a4284b3898c7db9a268d7f6151e476fe3426e809b3ff6bafe1b3378. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITUEK2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7128f0a4284b3898c7db9a268d7f6151e476fe3426e809b3ff6bafe1b3378. 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/ITUEK2000039.