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 0x1e5d04317b20f45e641bca6c6a8d4e9e4f9b81d09c4e7d92301729a77a1bea5c. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cff78bd-e109-40ed-9463-93e20e16957f.json and https://artists.proofprofile.net/proofs/artist/7cff78bd-e109-40ed-9463-93e20e16957f.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 0x744c60017e5ce35fb990f4d232778a1adf982b7cee8b7937332afbc08336e31f. 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/QM6P41431614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e941241aa585fdb5edc8d318580194d970be4e013c5519a7b0b8f5022ec8f6d. 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/QM6P41431615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb176ac9351c7ab57e5b6fcd934100342308b8600f09f0eeea0d956a135302d40. 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/QM6P41431616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b6bc37f1469fcd395611a35a0f1a7aeeed1b8e4ba01989c297c1e3c822b901. 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/QM6P41431617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f67f9eb55585bbd001adf348ebb23af12e66582804f6a920f87899fb20ad714. 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/QM6P41431618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3dd71c8ec301a22fa69f691b9869999b9ef7c43a1876c5f28e72d0f9816454. 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/QM6P41431619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11556b0dbaaeb7acb5ca5213409b1c3c9268e652dbc70615e0a6b3c6cea8e16f. 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/QM6P41431620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb745b5877e7c5f7157c0c44c137ad7d970f9c4b49f8fa06f0c6700f7ef421faa. 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/QM6P41431621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cab5ad993d4567e12dd4623c6ed473d743007725e1a70935515a587e854862e. 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/QM6P41431622.
Från en klippspets bland de helga bergen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc0f057506b7860dd62279c349643492b48748f8194ffa333f170e3f88f92b8. 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/QM6P41431623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fea679445595f4b7b8ef0cc07b2bdbba48cbd060d00935171d079659967081. 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/QM6P41431670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb472db5d27d0ffeb0f2371674f422fbd4bbfbd8ea121b94c048cddea954686d8. 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/QM6P41431671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8430c91d2191c66639d02e17206d7da9481419e05939fe74ab93acf7e5a62de0. 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/QM6P41431672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b319455d8b45a549d1a05ee3fca757dd8fb351fe6877f9f76e9ff6500eaf536. 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/QM6P41431674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9466c9d821f683e4a478520f6f959993aa13e0b17781a1e62e02e88a47e80a. 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/QM6P41431675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0d1f84ee7847c9b136cc82a579d83d21add038efeec05b679b762a2fccd849. 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/QM6P41431676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ae80a02ab38cfb1cb06627528a84cdb41ef307cefa719c122d940cdde2f24. 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/QM6P41431677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20abb56a3a3702af257f79a69512e12694f6b173213a2690d4956785cc006a0a. 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/QM6P41431678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c885881dfcf041d564c426bb158280d4a978bbde4bb5b8bab76b3bd9bba17c. 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/QM6P41431679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c172ba91339827c509d607242a2a2da6ecf1c8df1220a7ea556069ee4559059. 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/QM6P41431680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fcfea38bb8cbb48887baef09c62e308aa4d59bd9bb4d12015e1a5c400b6fa6. 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/QM6P41431681.
Göran Stenlund sjunger Lewi Pethrus- och T. B. Barratt-sånger
Löftena kunna ej svika - En minnesskiva med Lewi Pethrus-sånger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f5d751c307b5697d4a9e69ec8596bb72ac811d1c70c53d07220aa0df21808b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:27Z), 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/QM6MZ1493032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81be797ac7546cdc431251784e29f964e098632611e86799e849e10bd759d1d. 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/USB8U1065819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cf69ac8418ca351934e12b4c6f5fbc6360b72c3715582891a0c3e79006d380. 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/QM4TW1511546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc33892ef0ff5c5faff105ffc237581dc1aaa24eb220e4fff0903c90a162e084. 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/QM4TW1511549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e324a4132e716dab7870cb6365b56f5527b93d27203117d32c34d28e99ca79f. 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/QM4TW1511553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdf1f73ae48765d5cc0b5f739459ebe71ef9166045fbe7866fc034644819928. 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/QM4TW1511555.
Jan Holmgren sjunger sånger ur Einar Ekbergs Amerika-repertoar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60de56830ddec69968ea7e44d101b89e7462d9c291d4261fc8b68efdb1f191d7. 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/QM6P41837172.