{"copyright_id":"0x8469e12e656f0afc2888ed15298b6b94c3eed489d3e48d703f6dadabe5776574","name":"Silesian Art Collective Symphony","registered_at":"2026-06-15T00:23:16Z","symbol":"NIM0623539","token_address":"0xdf91a5df6c91ffd0ff80637dccdf2b414ac8ca09","type":"artist","uuid":"bcc039b5-3398-4bda-9ea9-e3d6f43770de"}
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 0x8469e12e656f0afc2888ed15298b6b94c3eed489d3e48d703f6dadabe5776574. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcc039b5-3398-4bda-9ea9-e3d6f43770de.json and https://artists.proofprofile.net/proofs/artist/bcc039b5-3398-4bda-9ea9-e3d6f43770de.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 0x60e7bc54debf512e43ae0266cfb9b38556c8d807aefa2dad1536c2f7276978b8. 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/PLD272000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a1d85a76e414809a1be1625fe1f86fbb0c7b96da6946c8cd4a2892d0b6075f. 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/PLD272000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6211ae490c86045c3fd7801d49119b12a98d7c1075e3ca233a0b617c3bec4. 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/PLD272000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b29e91ce8cd50264a8f47b8add6f0f60d9fb8cb7d8206493ea972fd23817ac8. 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/PLD272000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa35fa41f60d87bc033628e55c70de514150cb8fdec71a7e364fc8ec90a9414. 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/PLD272000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677a62b672def5a06e2f8b0543e9fc869911dd679fd5eaa216677c07b1dd4c65. 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/PLD272000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45970130775b9390ebabfd79361e77c50ef2446dc46479bbbe5c327d3bdd296. 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/PLD272000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b465f1de07cea95234dabd83e46e5b51806b48fce2a0d8dd4d40f961e579c8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLD272000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff21ced738670fe916b767c102cf8f743e4c20ab9f28528607e307fb6a2a6eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLD272000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8ef721bc41e021fbe0f4724beaa53f0499e0571412d92adea586dfc8495198. 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/PLD272000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabece8e70f80a7ecbfc19c496dd5c200f6c864b153fec5c33530c4baaa6cfee6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLD272000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d08e59a2744e4f16eb1683db4fc353f55ae20f72e3ea3cc525e65ebc8ff397. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLD272000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b8bb1665879e182aae94b2f2344c7c5762097d2b675f8ef49c6790f40e0c7e. 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/PLD272000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966f54f99db2e2bf3c8a27b1629cbdad87327f7a5209f1c49886b95c3c08ad76. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PLD272000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce6b168539e0f299437358a4db7df2f10956df44228bb0ef93ce80c220efbfc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:36Z), 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/PLD272000003.
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 0x5a5718b28630ef10c9bf316bb0c6eed1fe15f07744d1105080e0b453a6da160b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLD272000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa53400f77711aa4bed9cbd9d9f316af5255cf83b074136bd9f1f90a85d581c. 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/PLD272000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd67cdd19e64a2471d2bdc7a490beccbb2b71024dfc052fa5deb27ed50c2d32. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/PLD272000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d59390a06d2333b149590899c8efe1e1fe73f5b05614e0d30b8a29c7b9f96. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLD272000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6285d782a7916b77e551c85fb98e0dab1469d28fe1dd8fda4f01e092e039e3be. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/PLD272000019.