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 0xac32d17324853385b76c03915fccdc91540c68c0101353f3113238d3e10827a1. 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/4040dbc4-3fd3-4ff3-b45c-48612b1c75e6.json and https://artists.proofprofile.net/proofs/artist/4040dbc4-3fd3-4ff3-b45c-48612b1c75e6.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 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 0x80826bd9df67b941e9a194a7fb68bbd166b05628758ca6bdf27f8b7b4590136f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AUKDT2300591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a807ef1ea9156daa047efd9b58ba4b7213ed328d97ed0f7cba068a73dbbba1. 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/AUKDT2300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c924ab8b03eeee70f08372282a9d0a0a4b897ce44b8ee19de9bbea15200edf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUKDT2300661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d93c7d58fa7201f2d46445eb2a24e442e642f701623c1a58719bda8fa965e7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2300708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7877900b3b23be855c2c5b9a67433f83cffebecacd94cdba7e384944b5edf2f5. 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/AUKDT2300724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb07f32c9599a1c3b2a8b801651556c18263f99c9d8245e6bb99194d4096e80. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2300805.
Longing for Belonging (Slowed and Reverbed)
Longing for Belonging (Slowed + Reverbed)
Longing for Belonging - Slowed + Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6655d2211a2229e2e581d23397b644dc142f9c65cedcc68b9a634fe92e833a3e. 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/AUKDT2300838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60afcf9e0c18b0de44c6643edc83676bb5965a727f82984288dad02874180eb7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/AUKDT2300883.
In This Life or the Next (Slowed and Reverbed)
In This Life or the Next (Slowed + Reverbed)
In This Life or the Next - Slowed + Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a843cf0c3f186eb4e039f1a684c923bd801b694e0ceebe51ae7a91ae86d2f9e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/AUKDT2300894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ca7618d51b05fd9bdecbf233395b5cbeffcd6910f8f3c66fd92f374df5c66c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41811dd3397443e80a065ff3d3fc9f706bcd115106b4bc3bd38138307e772405. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/AUKDT2300979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd5e05fb5e7780f0772d7fb6258f04c3c577a42b2dbfc8b4e51ce758ed5319. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUKDT2400751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9d5a3c32d0d898dd33cc226d74e16c4e1b0cc41a42cae27754a3ab2ca33c41. 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/AUKDT2400752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a34b1985295633011505d1e96690a001d3f90d511b70bfc4eacd66a6d2a057. 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/AUKDT2400891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88ba79ec3e927913e80e8bcf795ccf094bc33bc1e9850f5bfb5047fd46ad5a7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2401180.
My Favorite Time - (Slowed and Reverbed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa86d7170ab708b7663718fb89f2048c55739729fdf48717de41034a69d7e4b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUKDT2401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e6d495af5409cac6380643849b9ecb9b2f83e6c7df49b3d900acf49c53e2a8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/AUKDT2401245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60afcf9e0c18b0de44c6643edc83676bb5965a727f82984288dad02874180eb7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AUKDT2300883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a807ef1ea9156daa047efd9b58ba4b7213ed328d97ed0f7cba068a73dbbba1. 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/AUKDT2300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a46e21013eaece7839270f4326dc2563d0b327daf20b1d0e16ffca7b04553c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUKDT2300584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d93c7d58fa7201f2d46445eb2a24e442e642f701623c1a58719bda8fa965e7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/AUKDT2300708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb07f32c9599a1c3b2a8b801651556c18263f99c9d8245e6bb99194d4096e80. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/AUKDT2300805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ca7618d51b05fd9bdecbf233395b5cbeffcd6910f8f3c66fd92f374df5c66c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/AUKDT2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd5e05fb5e7780f0772d7fb6258f04c3c577a42b2dbfc8b4e51ce758ed5319. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/AUKDT2400751.