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 0x156ca92afac5a578495e8a2b31358234f96498082372d4b3cd875df4243b7929. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed5cddc6-0227-483e-bc41-cd65faca3220.json and https://artists.proofprofile.net/proofs/artist/ed5cddc6-0227-483e-bc41-cd65faca3220.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 0x25108a64c8172110da72a05345ac5408cac6c78906cff445584acae8257c7c50. 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/US7VG1659918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d030499cf7d3acaaa821c149a7b8a999bde9e63c2fa10b8c5c951e24db71bc. 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/US7VG1659919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e0d0cba66fe4482ab91f39ad3d9c6f8333de959be9b55043f2eada78ca574e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZGLM1955023.
Cuando Pase La Niebla (CUETAZOS EN VIVO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420441b8e19aa7cd1524b6608c5119fe7982d95de4dc9d045a7d8e2523950745. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:46:54Z), 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/USLZJ2345318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8180c421c3a37515d164303048a53f15f13b5773107c09c028ff8815a003f7. 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/GBWUL2301355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe432492bab81ca92eaac0faa96b592e46a657786d01307a711f6f46d2a433e4a. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBWUL2388535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8b7b77dad8ccd1e5543178870c3fbd281d50f2b853d3f2f67481bac9f7477a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTRX2398971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72076de5ec8a856bc3bc917a541e8be19107f8639b696871180f45837b90dc77. 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/QZZ8A2365444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9631d434239c8ed32072436eac1b3d0fd0050d18bf846d9b0ba085f4ecf827dc. 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/GBWUL2391013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ac52a056daeb0e07274f720f00456650602c1e6798de69328e604b9027db6e. 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/QZWDD2455370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8180c421c3a37515d164303048a53f15f13b5773107c09c028ff8815a003f7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBWUL2301355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f52669061f85fc8bf37377beb114f0991c3f91751427514807534c9ca58d6. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZTV32585983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e6aff144d7eb7b83f131eee35c66df9f357946244e02f075b84947191b587c. 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/USUYG1023081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e3aaeda79497b376578df07a23bf1b8684aef9a0f13618c1ca036955234a1. 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/USUYG1023084.