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 0x2fb810780736cf209a6189c1f71a3b3d40a8acfe47543d710a910110d59cec3c. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/837e4651-a30e-4338-8451-444491378c0b.json and https://artists.proofprofile.net/proofs/artist/837e4651-a30e-4338-8451-444491378c0b.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 0x36f2c9baa784fcb098a403db0e0107c463e4c1a8a9d6949235ff7c4e12b0766a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/SE6QE2306514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e166ea207bacb94ad1cc854c6d3553ff62b8d35ed7aa8771871cc4725d48076. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SE6HN2396167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6c19477dd8fdbe56d310561495e05f491932f080fcaeb1892aa3a80fbd131e. 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/SE66N2326687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400f6800c343da04eb44abd06a762ebb77ed91cbac897184d9cff79110655ea. 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/SE6SA2360318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4423a4ff8212fea2f99748f00544286d06a29a666cf8d1c3772ed30b74dfb0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SE6TI2353080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797567e9979c53b937edd5a3734fe404d84aeaa25896bb9e3072634d7fe7c51e. 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/SE6XW2344734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa1409d2d7b53f72c3f754a67cfe6f5cf635c81e28791000908ef4c949153a. 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/SE6XW2354609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6c19477dd8fdbe56d310561495e05f491932f080fcaeb1892aa3a80fbd131e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SE66N2326687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d844fc3ac49d7a2f848ef33197789ee284153663bbc142f091c6e23cad196c2. 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/SE66N2331865.
STUPA I ETT DIKE (IKVÄLL) [Greta Tuborg Remix]
STUPA I ETT DIKE (IKVÄLL) - Greta Tuborg Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6503db9dd9aa3d26ed17b638c0c716e2fabfa87a4d66230f350e03f854de3f56. 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/SE6SA2311016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb98359f2b56e119b4f6906baf434f620a5ae57b13cbf24c7a25daa7f84d812c. 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/SE6SA2329107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672f822eeeeb675994334f4016242486133b16c263bd3c5a1350c42707197fb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SE6XW2315951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace547acffeeef30518d3a975174d64c34642d26965048886c8ba141c2eae898. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/SE6SA2370335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcf0c4fe821e5a23e1fa035ce8cea47de9fe4a1cc02a39c95c8d9f5706b503f. 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/SE6QE2341450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b0c606f35c4b9e7d5a0db82574d44a211e1feca3c511c876746d12584883bb. 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/SE6I32352239.