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 0x4b82a287de1fbc4b7a1ac25363f0bf8eb909bc09cd2545d399fd1103c850915d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc5191de-c3b9-4ddb-8c69-22fb58a3c0b1.json and https://artists.proofprofile.net/proofs/artist/bc5191de-c3b9-4ddb-8c69-22fb58a3c0b1.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 0x726975c14fd6c73c9da91317283e46a1b63d5b4f090f1b7ce078195f23658764. 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/SEVPA5003701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f4c2eb52d7d41cf5b888673ace6b48729231c649718d405e04bf9a8039234e. 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/SEVPA5003703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97338e666f5b20932fc3020bea8826ab86da9fb312f83840c49144150f74140. 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/SEVPA5003705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186f8e6241faeb51de442ecb993e24103369c9e4557e4fd92436b7f58d36af6a. 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/SEVPA5003706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d42f3e1733b01a819a28dd037ae711c9ba77178f7d07c2ec26b678f1029dee. 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/SEVPA5003708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf313e8de20a1d9147b2e19567c6f8f931bd30af56234eb20eecd65f302843194. 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/SEVPA5003710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4067b0b51df817437a492e449a597594c7ac69dde3d006b8e440e8da3748808. 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/SEVPA5003711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f05cc38e9358654445a8bdafae12ac35ec252cb8b88bb708522184d46ef1cb1. 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/SEVPA5003713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887e4910d69727a1f289d7d0c55a95c1df9ff869a8338efa35e51eaa6be74ee0. 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/SEVPA5003714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221e1b380c5e1b9278e448f663c1b51ad837a65347f16e5651f486428055767e. 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/SEVPA5003715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82367b2e0e35a1169189e7af0e17388f620b583a45bf6e3408062c55a1a39c5. 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/SEVPA5003716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5855a9ebc50c407bce6c7068db50e29c4d642d231ede7f12ed97b0e9df865225. 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/NOX9X3708302.
Han Er Herre - Jesus Er Her - Han Har Beseiret Alt Det Onde - Han Har Makt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf332095fb0e92b97dfe3004bcec8416ebd9efc4d77e6175dab21c97b144540b5. 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/NOX9X3708304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf09c22f315da02f1e9793e0405741d698addd9f0a83bb3da519bfd944c551e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NOX9X3708306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2dc1acfde4d59079d6b3f8b66cc7ec48ed3f688de30974afbcc1090a9b9db. 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/NOX9X3708310.
Jesus Du Er Den Største, Hans Navn Er Underfullt, Jesus Det Er Noe Ved Ditt Navn - Navnet Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294006916775ab4703b7f53b4489e31ce88a8e15a1ccf1fd24bb78bd929b98e1. 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/NOX9X3708311.
La Oss Være Ett I Deg - Gud Bygger Nå Ett Hellig Tempel - Slik Som Han Har Elsket
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebad5aafcd2583a2be5e551df472ce5945a0c279cd8907a6c595d0d97a231894. 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/NOX9X3708312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7611f4e86ac88b7494ed244cce0f9b7746ccdaf8a9f9fddc9fb0b2e99fc6a1c3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NOX9X3708301.
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 0xbabed118d58550ae22f8053e0656c90becce946bd09c044a2490d24fc1b0ea8d. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/NOX9X3708303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec75c515767737701ca688b621c3e92c17566f6fdc27d5b8d2e514a64141d04. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NOX9X3708305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0001139db5be09b1d9b69cafb416b64188798e1bc9233d7a2815ddbf53c13936. 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/NOX9X3708307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e899c4014961100449fc9448e9dfa4b8aafa5c25f9c1f6a33a04d3f9d34a2a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NOX9X3708308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c5dac523611f56550fe102e7b7710dd0eb3f6c6496bebb62dc5cc262762723. 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/NOX9X3708309.