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 0xad47fc2bd59acdb40797d8741df437cb730b1eaf78ef781b8c01ce32553653c5. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa1420ca-22bd-4d3a-b401-a2344687a60c.json and https://artists.proofprofile.net/proofs/artist/fa1420ca-22bd-4d3a-b401-a2344687a60c.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 0xfa70a42e4790b561eda6c935bfc0afd5538a81747d2983f94e0628efedf62c7b. 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/USA560588273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b4aaf49c947b3a93f7c8c33ce75e68376e16a732d9083751a51be140d5beda. 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/USA560588274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730b07db5fc9a89481e892a023e47972031ef1a651c95cc4b20dbb0061783a36. 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/USA560588278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c33d25da72777f29026512df06f4b27e9e0d60d59a9b157dbaa144613985f7. 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/USA560588280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91b9aa64cb72273f4b79a764591d214fdbb9a0b7cadd012fb1fd60593644b69. 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/USA560588282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e554732466c942c02e1aec1aa5bfa4c6d45b64b965123cf999c4ba1f811b7c. 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/USA560588284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0874b79478d5f44c21ad8cd48562c18fd4dffb355ea1bd1382cb2e753d7287a. 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/USA560588285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a3aea2981d1ac253f5427c542868e1581ae28d3effeae8e88124ca4f2abaa9. 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/USA560588286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4405193593d55d2703392002c26ce23f10cd3d95f7b5cabdf2b7922a0c5307. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA560588287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11dcb548a78ff2e2524ff83ac1fe0e959750484094f5dc8ab86d12b9c5b75d9. 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/USA560588288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5432205c2b129a869c4755f1a4db1897e71e69d5464e6c1d1960e939076043ce. 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/USA560588289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334728faf67792b52f63c03d9f1f37b05fbc8c2d036d88d5bcc2fcf542df60d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:21:31Z), 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/USA560588294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42976c047546496e48f0dba12f9ebffd1ea75d3509adbeefb065a4acee67cce8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA560588295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ec15a8975fe7b879370ba0925e623d6b02f224c9bd5d2a9498a1359cc41389. 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/USA560588299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79593760cd4be8c787bbd34cca1074e6966475b04ac61f191f9d6a0e3a50a1d6. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USA560588296.
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 0xad259f1d3f4634ebb05fcf0d8a28a7c10296e49c528e45ad10d27f0929bd7bb6. 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/FR6V80942399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd795a5dbf0cac04c84b1bca3e40f2f8962b307eedffff612b926bf1e5fe766. 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/FR6V80942401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93db022bbc7a42c44033f39808658a4ae6bb6e33099232cc1ea566dca62afbda. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V80942405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3247e585df249a5b34e311cda32103ada926f2945180ed65ff7ce9255a1432e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR6V80839903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481a57952e1d55c5862156af7549856e6976b1f526ce0c0c417d94397cd0a1de. 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/FR6V80839906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c6b3673800f28f67804c03a69eb3467e942ed889e85ed42f4ef0907522106. 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/FR6V80839907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4a3aa7430a1d8b69125ee18368943bd422fb45b155472136c0dd4944cc5425. 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/FR6V80839910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0305b7957f4a7619aa9b48c8c579e692a08a474ba55a7c628f10cbedfde5251d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V80839912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1515bc8dcf1fc8172e1c9c75a95d045eb05f0501aa4cf5bb56510f7df4ec77c8. 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/FR6V80839914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a365871eeef485fbe15477c47240ddc038dcc3846ecd3b835bbd16f12625c2. 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/FR6V80839916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e22b616a7b252cb96645ba7fc04a54ff9f02ea4d7b18b60890acaeebee5275. 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/FR6V80839917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaace7fff3ba81b78813cecd63fcc681f8c4e7300d85fff9502cbe558cb3cfc76. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR6V80839904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f76ad518a2301add9f687f210b23084d81d64c66c62a8f77aae272534d49edb. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR6V80839908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a032be9ac838d8a27ec5fa734781262b36a7bcab63d2489f0efcfdc5b0a6d04. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FR6V80839911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dd6d681ea6cb3a52df245a71c4cba238c0671d7fcc62fc008cffdc988294e5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR6V80839913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5e7f9b9a65a226f347c97b6cd742d61207e46db898e27cd1f7018f59c340d4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR6V80839915.
Ar c'hoat peñsee (dañs keff) - Single [Limited edition]