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 0xb4a5b7f83a0b2b739e997c2af3666d6deea2ef95b87dbf479b2f0f62c4c903a9. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b684fe5-e8c2-4aa7-8d0b-2c19068a9567.json and https://artists.proofprofile.net/proofs/artist/1b684fe5-e8c2-4aa7-8d0b-2c19068a9567.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 0xa662dabe8a688b8725212516bf026c0322dc537d3e7a9f4a88657854437421c9. 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/SEYOK1008659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d9045989c1b9b417acf0ca0efb878de4c97c6b32e9feb7f29e3e7da4cb2e61. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:44Z), 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/SEYOK1008660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c0124ca4437c2d6ac467bb1607fc4ee8ce5fba624b6bb8f407add8b6f984aa. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:08:09Z), 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/SEYOK1008661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90a15f0c9b6f9c67ac9160c5c58e06f68ab6aa759c15ff6ef549384a8be8344. 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/SEYOK1008664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6f94f22ff3416421f2d61b80236b6b44b13834ea2ee64fcdcc5d2e35df7b12. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SEYOK1008665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71bdcfd2f31e3abc64c7fe5985d8b07a939898bcf33da975309db0ffd04f675. 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/SEYOK1008672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddc05f7c10d10eebd61aeaf174762bb609206ba299896d25668cda6f12fe32b. 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/SEYOK1008675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038c3a4b5f30291666ab84a1210c8ad8e2ff16c2e3824bcacb19f2013add26bc. 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/SEYOK1008679.
The Original 2204355 Song (Alf Theme Chip Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17e8f177b51bfba34e7eefc985b62f70e926b2700de7cca611ac7666a9ea04. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/SEYOK1219604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80370bc3e8ac12da9c908ebd8cc1e2f79e2419f0a97848eeb070f00ae76c07a7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEYOK1218383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54322b13045ee9f7f9743bc5cda2b15ba6819439ffd167b7c820b53af21f2ff. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/SEYOK1508788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c069b4f957cad78c23eea81e67a55d60b6713629dfb38c65275f8246d557bb7. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/SEYOK1508789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1698aa977ec24fc0d7c2c019e3003539018d129a8f55674ee15b2ce6be60227. 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/SEYOK1671433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cb94c447d5307d15ab540d6ddac8b0b2b193067a42bc1ddd063f32f44fbdcf. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:41Z), 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/SEYOK1671438.