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 0xabb21471a7cb7b0d19049d1c7c75703e752f0ddacff8ff371216c83e4e6f4927. 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/da385d16-c7a4-4993-8952-583d67722f57.json and https://artists.proofprofile.net/proofs/artist/da385d16-c7a4-4993-8952-583d67722f57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wo bleiben die Scheine - Mixtape, Vol. 1
Willkommen in meiner Welt - Mixtape, Vol. 2
In welche Richtung auch immer - Mixtape, Vol. 3
In welche Richtung auch immer Mixtape, Vol.3
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 0x2d6f4c3bb46a21ba4ee6fdca998f84133ef33eb67cf5c5d62c934ee3b836caaf. 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/DELJ81924173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d496b0f14c43999d7b7efd189da0366bb9c6bb2fc9828e740d07ab44c54d0c. 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/DELJ81924180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d314b3b0359b24d90de770cdf3959b8333d6f967080ced465f4a4a7259fcefc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:21:10Z), 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/DELJ81924183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa107bb3c48800b81f1a36f1029ccee5a965ac917dc30b2c4949e0c05a2d55bd6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELJ81924192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26bed6162c115fd769f4a9268ebd20d8526f03c6b62c24d9d7464187305a20. 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/DELJ81923971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac720cce4abf44a8d70a96dc04ce4a9f77a74b1109f0837924b4ea7b5d7cb74. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DELJ81923976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c6e2ab5d0ffa3cccd6050d8d8f29501d0312b3842c030db239e3aa534dac22. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:42:59Z), 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/DELJ81923978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82f5c295b542385d235be5fec713ae6b4fb6a3936f73c675047ed36b22483e. 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/DELJ82088634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82f5c295b542385d235be5fec713ae6b4fb6a3936f73c675047ed36b22483e. 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/DELJ82088634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0c3c301921fcc47a560011b009414fc24e4d59f2ef448a00821d02569c1b87. 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/FRX282323523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a057c0da292b762b28a69b35647922739b922526088ca5fd8bcd0ac45363df. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FRX282323527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397. 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/DELJ81482592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057fb35932ea953338daaa7174ec10cd08e153b222f93fff893996148eba0ad. 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/DELJ81617736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8292223be57358e848487c492759542d2b0f17cc696e08509736d6f0cde1bb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELJ81617749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DELJ81482592.