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 0x5db3625b48017850ba7e0a635ed0beba6ac68d80be9cabc65ed4355f794c1acd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aab7909f-8aeb-42c3-9f73-95bad1e77800.json and https://artists.proofprofile.net/proofs/artist/aab7909f-8aeb-42c3-9f73-95bad1e77800.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 0xd6df2051e12098a5deb4f6e1250783ea203df0fd47a8618a1a025013b95f15bd. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QM7282012647.
Don't Ever Pray in the Church on My Street
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638aa1f461fddc4fc884d0b43b05f78dbda725bf1e458c73fbb5370ca5cbe59e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2069126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6429405c5a27de13f16c9bbfe9348b80b8019f2af587bef1ce52e3a0f7820d12. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US4TA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d51f447d10db726688ff693059fb8b12cf1c3f00f773cbd1c66c51354b2edb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US4TA2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4954f61c34a6207c65abe916297bb39f7bfc631e80e0ee79d569fa8f628d2cde. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US4TA2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda861c2029b5ae38b8ccac176db98b82f2c477e5b0e735f184d496de7309a6e1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:25Z), 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/US4TA2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f286ce5449a4f72e2d65d8d8fb0d29b45fcea199a6109b7c6420fe92c6760a7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:56:53Z), 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/QMDA62138942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142a65c8a4f17bc4b7a331b8c897bb35f45e097bb136e6efacaf029d78d76412. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US4TA2200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c035717d3104730250c42c21aea9beba242a12f04cd3734faa2d85aad70b976. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US4TA2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881cf709bbc8aa952a0f12b27418951a0f0c97827d0c2d802bdaaed3e3acb024. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:54:08Z), 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/US4TA2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e096d3a809a25724895b55e59d0996ab0f29dd936697c89d4f516062f3aa487. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTAS2274664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba14924eacc9269acb9dc47299dee32ec8278cb895c1e34ffe8b14b309173a7. 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/US4TA2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3c012d585940374b267e50bfc3cacc08317557057b2f0da740b9787320c656. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/US4TA2300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ffdad734c2b3251b9c34375df1f7f4c705859bdf62bd80cc24a30f41781b7f. 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/US4TA2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c312e1f35eb6d5540a3f9a1ceaec43ea48f32b013e7f0e530f65a1bb924aa8. 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/US4TA2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2091339af8c358b7ceffd6dc306b9dddd100aa1bb144b72e2fcc0d0c701adbd7. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMDA62260516.
Dull Panic & Sunday Gloom/Did You Put Your Song Up Today?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f47c315b5560fc7a3650af2d0db72f0c520af141d541ac0e77d971c2f6f358. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2351365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a4ea6442c33a10f28d21bc6f6da8250a795c5b73c2a097ecb5c5cdc02c47e5. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/US4TA2300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba131bfabb360965a1032258f28b7778db88bfdcc5577f9a30b047814d2c719. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US4TA2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999f4f96c69dda7aee7a4037e576d59aefa81bc317cd45bd2d5bbd623018c04a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZTBB2440963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed38980517761d739402d795f5e620ce62a5d889bc9b37c823b74b97a24e658. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTBB2440964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd21fa71ca28d49b419506950190d7a78d3e571291e650bf24f7df8eb2aa3f74. 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/QZTBB2440965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bde37f245397e1e5b7b67c74ce152b38df71b8f9f49adbceb862ed985cdecf. 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/QZTBB2440966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923ba54488232ce30e6dfc7c01b3686081402c8ef4c898d016d6e67c5abb6f96. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZTBB2440967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2443b0532f2e4e1df9332671ecba4375429cc49b264339c3922c2c926fa90ee9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTBB2440968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed38980517761d739402d795f5e620ce62a5d889bc9b37c823b74b97a24e658. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZTBB2440964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed38980517761d739402d795f5e620ce62a5d889bc9b37c823b74b97a24e658. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:05:18Z), 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/QZTBB2440964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7d5795ea9cecd056e095a086e6f6cc9bc2dbab9f4a2e8f6d3c41a16495f9dd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:35Z), 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/QZES72284291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2443b0532f2e4e1df9332671ecba4375429cc49b264339c3922c2c926fa90ee9. 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/QZTBB2440968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f09fc683e8970ac9ac733aed6c7a11db283fb511c8d58658c6a1e9b8744b4c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCKK2579101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed38980517761d739402d795f5e620ce62a5d889bc9b37c823b74b97a24e658. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTBB2440964.
Upside Down in an Empty Room (Slow Version)