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 0x60abb7ce16b05e677ff1adbb1263ac2ee7f15d794f3c7f54fb8cb463c5297c51. 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/d6f31392-cd04-4041-bece-b212594437f7.json and https://artists.proofprofile.net/proofs/artist/d6f31392-cd04-4041-bece-b212594437f7.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 0x2f55e6050f98c3ad93e6d9bc76e922aa6fd4c032d1e2bf740e53e2a5a0dbe762. 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/QZUZ42200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb144a1f8cefa364d0ff404e5b5f9a072fff7db62c03467e522bd72ed4eb2dc. 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/QZUZ42200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52d1075fb448ea52b3181e28e88a4b5183d984132f5b1b2777e853901e88201. 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/QZDFP1930796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481eb8e7768a89396c8c16fad0ee9e1859511c86e558e31ddc0beb87fda9b8f3. 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/QZDFP1930799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802bea51d94a3be3d45af74ff25b7985c95aed326f95df7425bea87853684781. 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/QZW9L2427510.
Que me vas a decir tu a mi (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e456d0113d2925ed98815be72a952d15ab6df74252364a0a48955400fbc12a. 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/QZNFJ2403822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d96d7bcc1fb65a9c4c5c1f8936e1077d91a7c14f21ac86c85c26c32e252e6b. 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/QZMZ92402474.
Muchacho Alegre - En Vivo (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31487cafe788af1d3aa579fe96d23d423b8111f7af3e82890c7c15afa00f1935. 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/QZW9L2327851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6c357faca15733a1266208beb9e4fa783ff3bf1b499c0193307b7fe6cefc46. 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/QMDA72342406.
¿Por Qué Cambiaste De Opinión? (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa524c3636477ff30895cc408793916b289af0e2cc8a6079c75981cd04c2b1b. 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/US6YC2500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601a2005bda7eded1dded0b9d371023517c36d269c7526fd412dec52cb6eb293. 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/FR2X42546007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc095d8250c90f0f0eaa4195daf45671667ed4a55346fc3c8a4ab84d3f2e03610. 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/FRX202531262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb6a3d281542a2d005ece1da77c11d3f75516be4839e2ee55df26c68806641e. 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/QZDQH2159299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b2e655b48ab874f97d8fb1d6e544ae5e103d5b9ffec1f0574d4e81dbd8d8b4. 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/QZUZ42200014.