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 0x65952892015aae09bbaa0f9004b56873e71fccafd59fcebb60b85be3601c3a1e. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ddff995-59a3-430d-94f0-bdc5db7a59bf.json and https://artists.proofprofile.net/proofs/artist/7ddff995-59a3-430d-94f0-bdc5db7a59bf.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 0x2a5eb707f5ac6dcc4c92bb80a73ad4c1d35d78c33e4159658c5f4bf416c1cef6. 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/SE3SA1406101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f44fb3b07cb9c48ac9da2cb0e37f937c30b369068aca2b0771b495f0772458. 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/SE3SA1505503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6705451effa336f80b60c380f77985387e4051c08854bbd858048fef4c3200. 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/SE3SA1307303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9ce6c8c449f1bf2f749dbe5843404d4d18244122728e3384168a321e2c198. 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/SE5BU1769620.
All skit kommer tillbaka (Radio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f35440dcbc752f732a11dbc9dccca51dec2bf571477d98ffe786fd9bce99f8a. 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/SE4DY1400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c7369d88c766fec8b9c5fa7502b8f83c05f45e6e598819df90361da39f38e9. 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/SE31A1200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbae22c4874462bbf5d3135b731d7e621da7f5b262cee3af33fb9aa4336a6c96. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5752466513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86abae0b358e12931ff512c593b803fb0fca0a029c0240b1c3a8c239b4d6048. 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/SE5Q42400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271476ef290c1dffa47cb7bdb0a51e8e22c0e85eb79f495f6eb1fa5d04948884. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:55:42Z), 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/SE5Q42400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3715a12f93bd95ff2dcb66bbff04604f78406ad02f4a327f49744d352c319007. 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/SE5Q42400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bc7137370dd66bcf51164e3ec489f71275cd7666131828f183db1e831467c3. 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/SE5Q42400407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac57fbec02035fadb58965737402c7054109da31d6671dea05f8892c51ef511. 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/SE5Q42400408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bdb77c412af53393d91c1bdebf297bc8b508c1b4c6050c873db959bd407e01. 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/SE3SA1305101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300662d581a647d9683c79cce81412337fd92cce4dd658bcdf697c628e14be15. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE3SA1305103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eca21691665483890dd43e0a9db0e1792878f3954e16a8367a67b5de47077a. 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/SE3SA1305104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1965eafd894e13ef64e20c32b0adb09c3866b42e5a77d8be7c81fb0d742228e3. 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/SE3SA1305107.
Aldrig nånsin (feat. Min Stora Sorg & Gabi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8900a2ad1e0657d1e7c9e0b5a790ad7439ef37f4b2f2ae6171ff168d2f44f4. 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/SEXZC1400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347a0a328dc5ed665fd337d1b4a1368684acbc3478d630eb00f35dcdd1a46e43. 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/SEXZC1400701.
Det vackra fula (feat. Niklas von Arnold)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169ca7800a301c5158b2ee5a674b6c7f2cb97dd8775b4d220570b421f7dbfaf3. 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/SEXZC1400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347a0a328dc5ed665fd337d1b4a1368684acbc3478d630eb00f35dcdd1a46e43. 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/SEXZC1400701.