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 0xe103e3e5bee47525fc88fba2c6a9bb1a03d3eed357b1bb91af0ecd828c1b12cd. 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/e21e58a1-f003-412b-b2f5-476b0220fe3b.json and https://artists.proofprofile.net/proofs/artist/e21e58a1-f003-412b-b2f5-476b0220fe3b.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 0x40f8581b2c73a8aa036039e5c94ded24013e1d4140c44d80eb846084bd183370. 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/SEVJH0300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa609b712d0a0fe47ff93514752779d7c395c87aeba7392a715f61bbf44356c4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SEVJH0300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5de9626e0a1e5659a32a0a58aa29a92146bd439dd02fff3c42b5199c2081bde. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEVJH0300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643fb6a22e58681be460743c4dd9f3c1281f2f8f48434358add41659ea1b35d9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEVJH0300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3985e260c17354663b6643e3b2c95a35f53d27b2122bf2aa84915bf8bc5f7a29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEVJH0300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0defdcdde8e31e6511852f519d0f1eb7fd6c36bc618c0208105d397cba9c5cd1. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SEVJH0502008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fb0fbe3bb6631e47b05e2ec7d55ac8a36ca95ce3bf618f7277e328e406230f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEVJH0502004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9a980f69debdae37f63dd55f4155a15e906e97ab1ebd2052a2b2d40b61e5c3. 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/SEVJH0502005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0016341daf191c4c3bcce14f8cdc183d40b6f669bfb26b701e6f7caf8f01a2d3. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SEVJH0502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d8b821dcf53e0707641c023ffce4fbcfcbeb93abc532611a42ea8332e81829. 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/SEVJH2301701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d04dc770e6e314cef6c2d52d588475c970b15b5ddd92565b776ff438703c713. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SE6SA2468300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89d0849c5109144686b818ce52d0f9ebef300910e62eb93100c70c6b583c309. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:01Z), 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/SE6XY2541775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3129cb09136db01a10c63fe36b6b0a9f2f1c89ad37c9f2d93a407c292ddfca. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/SE6XY2568179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deea4368040fb65df5581c6fdccf0e9f4f03774049d60b044c1aded6d315286. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/SE6XX2535953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89d0849c5109144686b818ce52d0f9ebef300910e62eb93100c70c6b583c309. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/SE6XY2541775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d04dc770e6e314cef6c2d52d588475c970b15b5ddd92565b776ff438703c713. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:50Z), 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/SE6SA2468300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbcbcb391db508f7ee49611f2cc5b124a1924de02b029ddd3dc1c7c3bd8f5c6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE6XX2535956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea0d572d9335dcdbb6e3d8ad8445c1ed57be5cb3ddacd227e63a7ac4461fa18. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/SE6XX2535958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3129cb09136db01a10c63fe36b6b0a9f2f1c89ad37c9f2d93a407c292ddfca. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/SE6XY2568179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13bac1ee5dc5a21dc71ce496514e1197309ad6aed3a46257d53f3bee642fbfd. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:50:34Z), 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/SE6XX2535959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7928d413ea7716638321a3502c72ef06f321d839a2db6aa570baad2c62424f87. 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/TCADC1715153.
Njam (kryddor och smak) (feat. Advance Patrol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bc210f9e76ea03193c27b759c6204cf181d0de00843d3f269d7fcc35c5d0c0. 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/SEUHA0201309.