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 0x727c7f360d70ac2e8ba0ecc443c3047efa6b4fb0fa1dc23d96b84039036dbcba. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9296d4de-4c57-40e4-b717-9ca3d5ae668f.json and https://artists.proofprofile.net/proofs/artist/9296d4de-4c57-40e4-b717-9ca3d5ae668f.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 0x913dadce34e7ddafa41c3caf91e8d4c7f58bebac131d8a0d009f91ac84b7122c. 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/QZ22B1955504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008f5bafd992c6d7a64e723b059e4664f9a30727ba2b83ed7a53eaf77e8f890c. 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/QZ22B1955505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85cca1c77c6410558b387bc701845eeaa68e12fb917951777b0fd103776199f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ22B1955506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bffa15eb9593e2001790c5abe6942cd8af9b41ecda4857c6d99e566bf8d77d2. 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/QZ22B1955507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f1569bedd700c6f9d863d55deca9e7bbecade231b0fb74463298e0f2b5d274. 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/QZ22B1955508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a9bdb23463ccfdbb403a2213268e54510eb79223d86dabcc6c415a3d232ba7. 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/QZ22B1955509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb74ccee8feeaa00137d2c93b5cb12fc95cab23f5a51ae41b7ebbc386dadda. 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/QZ22B1955510.
How Did It Get so Late so Soon? (Slowed and Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b1a4deb832cba366de1a663940dd5440cc0478a9c06ae2fd57c7b5691f71f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLRD51952329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649c93e1404fbdcc701cfdd47a547c7693899653ee0995f4565526d79fe040bc. 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/NLRD51952331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f26735e4fe128466fea37eaaeb9bed926066ecd4b65ca9f666fab961176b05. 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/QM24S1820535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d5c41d96cd0239fc2c69b95b01cbddc16b0d87d3eebd8aa2052c90e46b6915. 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/QZ22B1934144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd613d5c1eb43f8ecbd4e775a3fdf12056a134dc2dd679d3bee631d9a9f0e9851. 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/QZ22B1934145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6d5f22a29e7295f7fd70d8e9f01c3705bf244647d0b49d2be08964a22ec15c. 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/QZ22B1934146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27e48b678ceccab225ceaaf6dd9448cef51dc65e7b385d3de58cf3d1b125605. 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/QZ22B1934147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98becb394fa6948be085c0388cb7ad10f0b4757e52e7c907d2b0473d738c98de. 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/QZ22B1934148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b013c48dd49753db2c5b62abd1f3e6bd938cacafd207689323832ac6441e17. 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/QZ22B1909125.
how did it get so late so soon? (Sped Up)