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 0xecfca32a091cac81000de3d080539543608e552176f79347edebb6c495201349. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c402acef-bc41-475c-9701-9eb6588a8a8b.json and https://artists.proofprofile.net/proofs/artist/c402acef-bc41-475c-9701-9eb6588a8a8b.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 0xba7c41098a116bc06c81285496024efbcf0b73cdf7bb545600cdf8da432134e6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:33:28Z), 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/USL4R2223628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1313e02367d85443910c7d9b5827e6f4b0b8d188fc83f81b835f3ca340f6255. 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/USL4R2223630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee261b836134ddd1525789568383b2c53ed5b78cfa28436037c4ed60a7b23d5. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCGH2370478.
The Realest (Wounded Buffalo Beats Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae13ef6c9cdc71197244495d40e95fc7b2e6347d5d8d378dfaa85f3199a9379. 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/USL4Q2367774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee2f09c9a0dfec3d8d3cc17aeafb66ef62c6494ac9105d4474aecb82fbe6f1. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T17:02:11Z), 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/USCGH2436354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbca7bc0cebb71ee68eea0630101cf3e24321df15828ab01d5bb2503295a88e. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:35:30Z), 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/USHM82413389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac176f3372348882c7643554fd602700ff5e1e0a9321e62715d0186dfd90ea64. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM82473926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aedace55de8ebff0ebde95f2ec3fdcc1d8c4de9b24b6b2f8d98e862b7443867. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USL4Q2439862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d13a34007765bacab355e5a5f61ce7db5be10ce0a25fd0dd05c8df923f602d0. 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/USL4R2441676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f40cacb2060a25bb98fee2effb5fa6c71ffb3782f69d0c4b4788d9aab3276b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4R2467495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c7c1eefac426db5c64dee65cffca62cf73c09f0bf69d8d2248a6f05f383f52. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:29:15Z), 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/USY242409205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484d637955143d23247bf87288e842e5f6722019d511e56b6ab3f4278c80a201. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT3TB2425818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b553c0fb2c56af576fc24f5ac91ebba13726d221d9633ae66c02a4220b11779. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH2554807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca379c50c1b07940e0a08f52fee6425c8f5426d0ad58be7fde19733812b2927c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGJ2584875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c58bea4d2ff1a8b0b55b8cc475788166d03b402da2333a3cbc0be1971bcc549. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM22538954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e58d2a8c9634b20ca7406dd80a064e591bc6cd606837f2e21e838f7a34ae25. 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/QZK6F2388789.