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 0xab5cd6c9d68a5cf066bc14f447f26e4c32919c3c3bce38a8fd2d8cb84dff39b6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa5bdce8-accd-4ae2-aec5-cf6f8a6d2ba4.json and https://artists.proofprofile.net/proofs/artist/fa5bdce8-accd-4ae2-aec5-cf6f8a6d2ba4.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 0xcecce0dfd2b64554546ee924823cbeccb3033ca5704a49ec0aa5a8efa2586d16. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/THRSP1212475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a8083bd04b4eb85f5047fdc49f5e2273e8e17f520bece5a9d9ccc425215e42. 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/SEPQM0610687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9a8c1196d3b3195f1e21e5d52088b67b48097623246c7a728dad937cb77329. 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/SEPQM0610684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9a22ab907f7426e52a3f7aaaf85acb5098f7c68fa5c2c199e2eef395285aa2. 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/SEPQM0610681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa10b1939cb10248c5c0f0c2540d14055a436785a9232e18e80c0ad765fbc25. 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/SEPQM0610683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf9c66944b4444b6df23afacd81b8aeef62c298547966920d58d10f64d36b04. 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/SEPQM0610680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb287116557349714d3a2e91c3027e105a8ffcfcd5e81370a17e60751df754c. 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/SEPQM0610691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2da5e24589ccde1bdbd2700e5b3a055b81b5d9f8fe70d87623692b952b4111d. 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/SEPQM0610686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d502173eba70c25cce9228ab4f4ad4cda1ebff6b416df83ac04e90068e39790. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SEPQM0610685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac9ceef6860e7784d2e50d92e211c1b43a4b573fc8bafb7b79c5f31dd2d2c5e. 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/SEPQM0610689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae5d1765fa771a8a1dea9ebf95d0b1c4592af18dd71d76cf36aee6ee995bca6. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEPQM0613536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa10b1939cb10248c5c0f0c2540d14055a436785a9232e18e80c0ad765fbc25. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc318d57fcf0d08adfdd44b0b2f4be2a7f4cb047d206f3e3f6926d505a04607. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0613076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f4f4a43def4e89e57780ae1a77149c9d0c2e1f95e6d4974b307b6d0cd00ca9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0613089.
The Wind Has Turned Around (Vindarna Vänder Oss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae576594123cb5ef5fae6f5e5d3788ac9dd8618cd63349b9323ce5166692c5d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0613060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a8083bd04b4eb85f5047fdc49f5e2273e8e17f520bece5a9d9ccc425215e42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610687.
Svenska Schlagerhits (New correct tracklist/audio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2da5e24589ccde1bdbd2700e5b3a055b81b5d9f8fe70d87623692b952b4111d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0610686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa10b1939cb10248c5c0f0c2540d14055a436785a9232e18e80c0ad765fbc25. 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/SEPQM0610683.