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 0x08eb8a810edad98462d58da9e51f77218d7a20e00aa02a5b0db2930632a20007. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34ec6968-ae47-4a3e-a4a3-727eca76bbeb.json and https://artists.proofprofile.net/proofs/artist/34ec6968-ae47-4a3e-a4a3-727eca76bbeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You'll Live / Algae Bloom / Solanas / Good Times
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 0x6ce9206c0a4ffe8c4219d68e62496c9ff1b72eeb7b50a3c731bc7e207957a247. 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/QZ22B1896678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c389df4e87c4a9731884e9cc654a5dc015797ca49c540d75e85787e870e6e5. 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/QZ22B1896679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d1b989f332779fab137b55b3c09a50a2f9d52d1baacc8ac4b6f65432bb14b9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ22B1896680.
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 0x764714345e9e49649d63f447a693099863970e861289d0a98fd3abb9732d5d78. 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/SEYOK1802977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dc5c27756cbc211319188fa27a65be18f3f675df1b0bdff9039f96fb3843d8. 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/USHM21587322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73a61d366adbcb53aece920e1f3d4c585befb3ddc0437f58fb4ef71ade1fadc. 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/USHM21587324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2292b7d5f09b735194552c96ca30d3fc3831a36111eb005f2f5a313805041d54. 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/USHM21587325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779315a8c7865116d9ebdfdffa0e21b8f8d6e7ba048069c5cbea7e02eca95353. 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/USHM21587326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64896ce45af50234fdc17ec23ed1c3a2ef9b477a0a8b86128cc41897d691d4e1. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM21587323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e540b116051b9d81e9bebd2ceb619d1413de71c1d69c4b829ef41b1ddd6cd7d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHM21587328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9653b744fad87635b3452642faf11733a76295d23e2ae1baff335695151326. 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/GBSMU1430365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39b6e63c4c324a48d47db7337cf9ba380b23de4ce57431ed5acb6e6f6afcdc2. 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/GBSMU1430367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2f9a6e4790d1d7b120a6373b9a9558bc700e78d829fcd08be4f906ac19f8ba. 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/GBSMU1430368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b70e890e35ea7ed64fa3e1c1d36aaa7e0ae828491513edd1f86b68d72ad4a3b. 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/GBSMU1430369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea574057af591f79f6cbcb2659670054303e6953550a0834783303b152109b63. 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/GBSMU1430370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf640a407dbce730f04064bcd61f1dc46efbd91ae406d11e639798138c8f0d539. 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/GBSMU1430373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52fe822b2f5d950dc16c7cdd3854e4842dc96530bfe0914c89c82a120c025a9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:26:39Z), 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/GBSMU1430371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79832d44e255696b66205aa41541435767b8ef25ee9d71808293624913e6674. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBSMU1430366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69db8affb014584caae366d943ce78415c40368e952d735796a95c3843fee6a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBSMU1430372.