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 0xafd27c683475f416fe05d8ec3360f6a59c45374d767daa53220d8c9ff1f0b780. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95bd617d-aa38-46d0-9ddb-f16f0da6841e.json and https://artists.proofprofile.net/proofs/artist/95bd617d-aa38-46d0-9ddb-f16f0da6841e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Antieroe: Nessun potere, troppe responsabilità
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 0xfdb1ae374d964677dd15d84f8a078decf2621a6221bfdcd12d7c66b35376549e. 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/TCADM1875992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543bd0495533a1683feba988dada346671561aaa3d46f8277e6d4ce4bf200d7e. 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/TCADM1875994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09111b307c4d59711f0ccf39b1a1c5b8ff4a71073c2d5974f68de3d810986a05. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCADM1875952.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe992aa200137d5f95287a944b88c2fd8fd39518e550548da2bae0ca79e44a99. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCADM1875967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2690c34f38ae3186cba7c094d1809f0c002bb34d65e37a858f6da0e74b2d48c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZHN51905370.
Antieroe: nessun potere troppe responsabilità
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c448eb27d9de20fb66db93f05a577ec51923a75cd0c98d404f24966069536e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITY862100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9564875a7de58a06fe0750b79ff2554ca00dd73d6509c017bb9dd993176dc4c. 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/ITY862100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eec945045a892f61c4920186d5fdd887a978d5a568a0dcc43efd2b5d902bca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITY862100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc113c43ee5d5b35deb2a96b531061e08077dc8920a17969600925e442cb59ecf. 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/ITY862100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2bba5c12af2da328100c0cbd89583a56f3c6fe426c200b479e78e46e0ffd09. 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/ITY862100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37188a8e8f72d1254ee6c6123a010a8781cc20693f0b4911c2b41bdc4ed02292. 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/ITY862100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352be48632cbd6ac005e4b094ef3ca85c48c5667286be766a49585a2e1b259f7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITY862100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f5ece2404bb85b98adffbc8988bea8555884a535ca77ce936327b1c21a42df. 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/ITY862100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e833b14f923a23213507d08af0243d95772dc1f9f9aacdf4733fc7807787746. 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/ITY862100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda58a10d7e027d2700d87aee1f7782f638c6edeac9bcb5e4d0531bd3b9ec9d79. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITY862100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c78cfd1e9f8f16f5263f9a4c8814fef266fdb1b2119fff70577396efc8fe7e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITY862100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3befcd6004a51234ca10937f6662c25a7d4ed6ac3fccf9739d6a0116e7635982. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ITY862100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2197851c9fa3dee93e47b32a078f85d79f06cd6f0e8b3693c3331a5b22130ba. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ITY862100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d141c56ac852867e56e32c942649bfaf3725e223baac9239b6d33e878c66a6a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ITY862100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b47a625dbab822e62f03cea3e37c1e6167df46ab2997b8dcdd7314a29e26b7. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ITY862100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e24d844113e9daea2f89baffbb0e3e46c3cbd261f078eef0483ecce115f625. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITY862100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7be6757c1a05d27d3ac29d182057977ccaaaaf3911b5110485718ab7688408a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:38:27Z), 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/QZZ7L2418836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1049ae9aedbdbb362cf34047894652135701b21e262a161165f336a2d2914aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IT2G32100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf048e51f0a55b2129372b4e257b94ba0dec62a4efbe3c120b2ee32e923887147. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITRSE1600488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd420942235914ce8eb536d7c319de1df246b39fb71628028ad2aff7c1427ef52. 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/ITDF61817039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9ef2487e62528ef5a3d600664d3aca9d71d9cc5ceada7902de4d6a440b2b47. 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/TCAGD2228787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd501945c2e97f41ee1a7f76ac3500283d7e2646fc1de110ac50584ee901867d7. 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/IT2G32300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36282e3eaa1344b13d47d5c043a71b718cb83c96f1a7045619c4d7d96a885654. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITRSE1600683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd501945c2e97f41ee1a7f76ac3500283d7e2646fc1de110ac50584ee901867d7. 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/IT2G32300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80654fe090c880f0aa85f3c567250cdba7d8e857948254b16119dc7e9c9e0a6a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITRSE2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbff514716855f16cde8740f535acd03163305f46564c278a5e1176b1b96c833. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITPI82000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac13da3569ee0c058453978cc9e6d3936088bf5429c0b173c7c3ded75448c3d5. 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/ITRSE1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bc424d9324bb4813d8eed7eb939b15ec37f162ce13b808c8c30d226e4de1eb. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/IT2G32100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1412b525c316dedde38400e38f4e677feeadf7dda661d3e98b89c4149e549d. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZPLR2257709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2831dfadf081bbb54d88ec9d3d1dc5afd661ddacb003377c37d8fe48548fd0bc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ITAB21300112.