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 0xe99adc4e2ba53248987a096d698bd4367af3820baaf9d65608909b90cb9a622e. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9092f9ba-6f9e-424e-8f13-cc974ecf32b2.json and https://artists.proofprofile.net/proofs/artist/9092f9ba-6f9e-424e-8f13-cc974ecf32b2.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 0x49ae60a333f12ccb99f4cb659c10c3628a54264316c8988e6f3995e7605ffb84. 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/SE5M51900103.
Guitar Stories (Sally Wiola Sessions, Vol. III)
Reason to Believe (Feat. Jakob Algesten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4559da040c06476fc927e0479c34c4b24daa242500e8ed48b21915fcf6b7b12. 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/SE5M51900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4f703f6079cf1423c379575c1a4bee75eaf5f10b6ed4f27d1fe24f0156405. 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/SE5M51900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caa7bb153c5143e0b19924f991bbe4b7a84b419e31bd61b9991fe60ac4bb464. 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/SE5M51900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4957fdc0a43e2437dddd035499094fdbc6eb162f4f9f05ed906230f9a98a148. 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/SE5M51900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463da8f6a0d8ba1e83c1faa214a3fe0ce2bce394d041707d0528c9dcc1c291f0. 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/SEXTF2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc7b91e4f443c9bba6fc044c45341c10c3da38447e5d06222406deacd61b70. 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/SE3VS2500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7b976941b1d20265619bc3c2d986d56b3a7de061e3ec288ed9656981e25ad0. 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/SE3VS2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcef555a96848d8a9f09ad2dc02147b316f5780d0921d2b67d337f7db4ce008. 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/SE3VS2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee8a85e58e060ebd530d727050fe85f26c80f4b9ec8ec3886e341107908e6ad. 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/SE3VS2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050697951b824d617e5ce531de4ded806d49b2622bd2fd2be29584feb842f8e3. 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/SE3VS2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3b582ec9e57ecf42458ac73928817d9657434e048e637260a13fa59367b18c. 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/SE3VS2500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4d432003cb32c838971b84f386cfdc3ba24817a3b6dca163ce0a890f7603bb. 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/SE3VS2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da9444d49e63db2d5dabcd5ca12ac08cce73cb8a77868d44de173fcebc9a547. 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/SE3VS2500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7838c4dbc2056afb5afd5fab8b3a72f90642ee63435c6e19dc3c67018b22d49. 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/SE3VS2500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148176918b09b3c5236914d35899c9ba2d65e676a384da31e1c2be4b4743746f. 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/SE3VS2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dd269eba75c33a693b5d6c2b6b06b3db2c70ff6fb9491e775fab441fa16af2. 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/SE3VS2500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b5016bb68ef2de25d947d7b16eae2d1e7aea2f6bff22aedcbeaba2d9897f6b. 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/SE3VS0900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc31ad4c6d915fe1c426b80a1cf8294eba518dc846135c39a92eafafc597625. 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/SE3VS0900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccad8bab590155e5265e508e44f147ab9a3fb909022ee870d0b83f489bf9e9f. 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/SE3VS0900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1f3d332f4e01d4b113819560f11d0de1c1cf9b003a6edab9b1feb3f72161b7. 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/GBMJG2219077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d952a6eb73d1f345e8e87e291f5af840d4c1eb8ee14c6af5b4e67b6993bf5b. 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/GBMJG2219079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbece056b3827fc2404d5a6daf5f8ff5e62ad769d58891be7ad06c7a84abcbd7. 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/GBMJG2219086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b5aa82d4f50376e74438992754f2b78673fbbc9ff00507d45c1ba49ffebacd. 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/GBMJG2219087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141547ccda9dced0cb6db734344986a0ae61198c347b59e05a216348a19f2c7d. 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/GBMJG2224464.
Visa fr. Hälsningland / Vals ef. Ånon Egeland / Tiokronorspolska
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f976e91322af0b6c065ffc1fada6620462984cf6a9f6794bdff06a913262c6. 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/GBMJG2224469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea13347fd177ab0b989bb5629a527cea5e66a8483a26458baca17fcdeb9c418. 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/GBMJG2224470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69249ddb966d8d7f14e9fdfccf795cd3cf559feca3f71c83e9d277dd38ead5d. 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/SE3VS2400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c42be7be11b37283db8711f3e5cd783aaca5dfba994153098881175d989e43. 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/SE3VS2400211.
Allt vad jorden bär - Kärlekssånger från Enviken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c756cabc1b75bc3d7ce884a025a28f242009122a41405fd44d5fc705290ca12. 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/FR05G0911238.