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 0x7b182d1c772b432d119dbcae83caa8efdb141f3c993a25638754eed1414fcad1. 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/02ef7777-5ee6-4b50-810c-290ac0676bea.json and https://artists.proofprofile.net/proofs/artist/02ef7777-5ee6-4b50-810c-290ac0676bea.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 0x2848259019e025aa0e6549b04048fd9383189fa3fa35dbb9a1e882ad4cdb64fa. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM21024909.
A Song From A Knife Salesman To His Wife On Their Wedding Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc770736e3e4497a674439f629d122e0ce9d32a3232d2d777e727c2a30419dec. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM21024910.
It's Time For Drastic Measures They're Not Taking You Seriously
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe029895b8da8d78ad28646f8eae30d42d6a27eb59cee26ac23a3c260d4ef7f0. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:43Z), 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/USHM21024911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529980d20990d08290515f5e74a17ff18539e84516e2be3eea485ac73ce3654d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM21024912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15498f66a20701680b8f055e62ef1ab5a4cb5ce72d78dfadf0dd0811cccc2cf. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:32:37Z), 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/USHM21024913.
I Have Nothing But Attention When I Scream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07522ce99de60345d740d874f500ca7e9b43b0f1133d8558571b3a5b6310cfbf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21024915.
You Have Never Lived Because You Have Never Died
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd371b82a20be346417cfb18e0f5d155540fa41d4ea97bbb822a04e1e2d04d94. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/USHM21069699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3402575f84816fba3cd16f8d02da52544241a42e605a228fe30b0e26136881. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM21069700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3766b914d9dcd9947f62fe42cf885d019a531f1da292555dc7a0342f73c7e4. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:04Z), 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/USHM21069701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28d677bf3341c85d0fbcc623ef86e17b50bf105ac7ddc8fe08b5a64f625376f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM21069704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd688dcf8e3a7893c96052c5ef3170189c7877f5e1024f58ff343f75e6b8f27b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM21069705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f42a2670e501cc7f2f7cca62ca4d25bf96fe9548463b49a17e50aba2f8a6d05. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21069707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0271ebfbcdb25b1febbdd8b1f967b34adc98275a94b55726a7ea65e2b703fb0d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:35:24Z), 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/USHM21069709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdb8a62fa860d3cd5b0cf9aa22963d00803a5c9c993051daa23b76f895ed9af. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USCGJ1362000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1466cc6ec7070825370be02c910b1f9fba0df19f85d5edf843a320473c5f9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGJ1362006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e93a54541bb80e653b4210e4cf44023dafcdd1c18bb49162e891f75b741be1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ1362007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cfb76a0563a2efc04e605a1495f053640cfba5b50e8fd147612583f24f4e5f. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/QZAPG1712064.