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 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 0x47bd0b523db8f84e4719da4c8d11d22cfc4e7e678a225ff4f21ced162e404ba0. 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/bdb354c1-172c-4b4a-bc55-6a750e8c616a.json and https://artists.proofprofile.net/proofs/artist/bdb354c1-172c-4b4a-bc55-6a750e8c616a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Even Before (Beloved Sessions) [feat. Hailey Swags]
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 0xfa81aecf66ae2ca017a21dff9ea75878fa3b4c9fd9ef34f110f1ab624d0c8e22. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZFZ42026587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a7e9abe1a26d6c51e813a926abbfd5bbdb7f002ea5a2eaf5c143894425066d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA62108294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f96dde7a5a176cff32958af32a6299562dc9f2abab0ed4ea6ab0157f35abe25. 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/QZHNB2136993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a09e53f8d0b4ee60f4634ed5a82df35e646f30d611ea1d84a95ebf14297e2c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWX2073714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb1e09575fdd9aa71c4ebc10b82fb954dba687f7f23ad27dd6469c45e450baf. 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/QZHNB2097094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca8afb55de1e17dd0316cd85c8b31c634faac7a77089b780359b18cdea5f6d8. 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/QZFZ42158811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06c968a1b9c994f8872fee0f28d9f892cf952d092491ff050e1e87d4423072a. 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/QZFYW2175156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fd06ac20f1b34fcdaeb51d132c8a9c84c223afa6a316a553d3862cab41da73. 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/QZFYW2175157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a10515dcc71e614e5699c2819e0aa7df109f2edb4fc4c06fea2ddd31872efd. 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/QZHNB2136994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dff07be0899a67181d4f6b36ce476a31c1dde9eed507f5763fbc15713ab7097. 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/QZHNB2136995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a7e9abe1a26d6c51e813a926abbfd5bbdb7f002ea5a2eaf5c143894425066d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZDA62108294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14ef0195581dbd0adf8b7889657cc2d8313d5cef287a535f3ddfd032990198d. 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/QZHNB2136996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1092462c6dd1d622e09139202a458073011c245a5c130f07901753e987cce. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA42331524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95796710f02a4b946cc2a2f020adfdc61f8bff827dc60941a1a934c1f2bf40. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA82448018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e32e13e9588e039ac8e1c4900688ab8e70a5a7c8cec0977973a40670d2386. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTAZ2459259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33f919c704c878aa2f59e6ac7cf86b1c2a55c5fa3b9e4e614e80258cb83e8a5. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:53:17Z), 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/QZWFP2394347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0253f184de8f7a0fc494e4ed23ae11c76e158910659e0e6c7511c14733ffcf44. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZHN72275063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95796710f02a4b946cc2a2f020adfdc61f8bff827dc60941a1a934c1f2bf40. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82448018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e62338dfb435bea1a25b13b59272bc172eea695dd4c39041d5cbe38d39f8f2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAU2446644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1092462c6dd1d622e09139202a458073011c245a5c130f07901753e987cce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA42331524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad43b9bdb9b6ba8d3b709b54f7644ab5407ab0039d8d8743810d5fbfd831e3c7. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZWFP2394348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf00c593e46e4694f44afc50985fc13e9b4e03bb8cea68b3e61e2610316fb094. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAZ2459260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbb94440256038cb5bde6d642bef16df8d8a583df68d1c3dab775726d162621. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES52569870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95796710f02a4b946cc2a2f020adfdc61f8bff827dc60941a1a934c1f2bf40. 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/QZDA82448018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e94df790aaa6e5041f665e1f01175876f94394857893d1eeb697ab0f6122a41. 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/QZGWX2032808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec607a3ed2b1956293472cc28b50c0ba52900a5e58ac198543ee32453115066. 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/QZNWS2454215.