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 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 0x0b0dae65e0cf048d30cf2a02111fd3a0e53e734102ed30da7add95dec1a3d22b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8baf8774-e166-42e4-8580-525243f83246.json and https://artists.proofprofile.net/proofs/artist/8baf8774-e166-42e4-8580-525243f83246.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 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 0x2c642724068939c0f306e9e88289c7291e165adbf193fb6016309334c2d184fd. 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/SEVCA0002010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deb16f872132a6e829c65e52e159b09fc65b70a9e56f956674cc3495b605c6a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/SEBIA0400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe085f7feeb4ebeac75b240f4795d9d916058c077c42e970043a7b5d400bad21b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEBIA0400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1764f1bc933ce7be70683a342bf870a43ab471b1975b79c49bb646ce91e8f0c4. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:59:50Z), 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/SEBIA0400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16be140e917483cfb2f2eab781825b1b950db9b9a19eeccb3443a3745d3232dc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DKBV70700610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8763a1bac1393ca34475bb8d27b137076fe9339e085030aac76fb55500346f3a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DKBV70700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238bd1d4fee66a31390ea8886a11bbf6e8e63bf7ade65192f06daf7a74bdaed6. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DKBV70700604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5dfbe659d9fe2cce2532a80026f320ad3fdd34e50a93522d6ef5c19d80d4fd. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DKBV70700608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3917f6053f9015b93ff3bf6a834e556c2feda05fdf504266402714b9d9086ffe. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DKBV70700612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1ea54d89d1f820b90291235ef1c9ec79bdff32b4355fef6ac193b5172ebba1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DKBV70700609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2085c2dd88a35cf8855d853793c69b71dce34a17840242a1901ee8595526a1ce. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/DKBV70700607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb2251a5327b62cdf3a5713d36fc7ea8e1ca65d6e69a3f891a3fb43a0f8b960. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DKBV70700611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0735195c702b1871e616d3caf96fa1b2263dc32f4a4ed87e71dcdd0498555e66. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEY7X1000102.
Breaking Up with God (Adam Rickfors Remix)
The Ark, Arkeology - The Complete Singles Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8afb1e1e3e81eb557832a06f529ed1f59595c09136006129fce4f253c0be12. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SEAMA1001966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb81bdf5a865cafd5870d9b46d228f29367d6ec7a3827c5ce20c7a28d9354511. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEVCA0001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c642724068939c0f306e9e88289c7291e165adbf193fb6016309334c2d184fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEVCA0002010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4c7cea610fcc1d891f7298a45d922351bc7f6f8153e7bbe634f6307e95b3f3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEVCA0003020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528351436d1fb3713ba68cb03b27ec2897c85f6276861b9b8dfb53f320a92c12. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEBIA0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25f5a6cba7b1346e720e93b39d931b2d1cb9d55f776cc99d18fb3d10b976b10. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEBIA0200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51afcaf99d25ad0661c52b196b030634a6971f88d13fe04bc77a8b1aa9444711. 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/SEBIA0200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8d38c126d25457e49b85d31cb64d2fafbc7aaed285c3fea5b96f66969d9874. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEBIA0200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c74efe45aa119cf30e615b62372269c6fadcbdbbf0f349330dfca3183d55cf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEBIA0400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee21e418bdf382fb772e8e7090b08fc66c48b3a48c077c651c13afe07a96d09. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/SEBIA0500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb730ff34e352da18f778b9be225b633e29f3fc7a908215e7ce78e5245cbeaa. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:08:00Z), 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/SEBIA0400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16be140e917483cfb2f2eab781825b1b950db9b9a19eeccb3443a3745d3232dc. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/DKBV70700610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5546862824b255f72526c5ae1b0b30122e500f930f0291d8806a6fd667bf538b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:35:42Z), 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/SEAMA1100003.
It Takes A Fool To Remain Sane 2000 - 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c642724068939c0f306e9e88289c7291e165adbf193fb6016309334c2d184fd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEVCA0002010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac2d0501f884c7b79a40b1de20431725f99cdf375b10e0d41be821687f23bed. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/SEY7X1000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee21e418bdf382fb772e8e7090b08fc66c48b3a48c077c651c13afe07a96d09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEBIA0500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb81bdf5a865cafd5870d9b46d228f29367d6ec7a3827c5ce20c7a28d9354511. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/SEVCA0001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c74efe45aa119cf30e615b62372269c6fadcbdbbf0f349330dfca3183d55cf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEBIA0400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238bd1d4fee66a31390ea8886a11bbf6e8e63bf7ade65192f06daf7a74bdaed6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DKBV70700604.
National sånger (Hymner från vågen och Epas Torg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0600ed72135b362ca66cfbc1df761a791479538f57b67141b9c6f5c06bd21b. 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/SEVQJ0200104.
Näsflöjtstrall från Uråsa (feat. The Ark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63df285200f44f93e02019bc70364af0a789fb53a414e0ac59b74abb20a646b1. 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/SEPQM0615185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528351436d1fb3713ba68cb03b27ec2897c85f6276861b9b8dfb53f320a92c12. 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/SEBIA0200001.