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 0x1481d0adc7d08aa94689c689152097294e00c6f5d35d7bf8bfa2f104fb10cf2b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab1b4589-d0ee-46a5-a563-55a61c9398f5.json and https://artists.proofprofile.net/proofs/artist/ab1b4589-d0ee-46a5-a563-55a61c9398f5.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 0x61e65317ec6dfa5fb8ac3f2bfc748e9b331a436953abab68674f4400780d685c. 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/TCAHH2365753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071337e869307dbabb5797ffd34f332d2bea78afc639d0480ef84e36be1c3a34. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAHH2365759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726a4195ec4d378c480e98f9bd6835c488fd22106427ff981b965d6cc63fa442. 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/TCAHH2365766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c55fb2b553f8dddd3b2f1056537c54c0524be296f4fe012f0481a2f811f7f. 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/TCAHH2365772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03e1ac2f8b02449c569d14d4acf7688a61aa2732f059b39ed09b97cd2a0d639. 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/TCAHH2365787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcaf0abf8510b50117ee7288cef6e4690936b374e14e68ddd3af26c39510370. 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/TCAHH2365791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd08b2611038df11cd1bdb263aaa46b9ebb7d1f73a27190ce18e57b7301baffb. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TCAHH2365798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318fd299c52424c297a626608b01fdd70f1f526ad900d2798438136fe435030e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCAHH2365801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa329c35725681daefc05f9f1327f74c678b53e28a39dd6d7814e27ee8ce12d. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/TCAHH2365819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e9fb80f88144da34991df9b562f14e135d2bfd51a58700d940830ae769f618. 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/TCAGZ2378414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55dd103cc8c77aac6a091b3c9aebd1c79dd14bb64a087835592624b1ed3c839. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAGZ2378419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fd666af020c22f8b2f5b95b2a96db284722d0b5e9b5e3d99d280ae2ddc6135. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAGZ2378431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbebf05072762242ba8b4489939b8f8a50638ff43b4f8eadf4b5470e47bd5953. 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/TCAGZ2378434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733bf350890e3c473b908f339093d7028cbf3e1de37df91473d9042da6953262. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAGZ2378439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cfa0dd4da45f09dc31853facdfd02d96ef3bb5d1473b76281768107d2dda97. 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/TCAGZ2378490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d2d64bac51f02feb995a5f698a36219441dc28be214ade119eaba692cb7b5c. 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/TCAGZ2378499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052e66d31a17bd1a79bf2540607700ffd26cf4109cfd6718eed353b11b6a4d74. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USA2P1955307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc02dd6be6771efd6f5110f64d16fa770059aa7cdc8f74e660380390f94033cf. 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/USA2P1955308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5000b18a5c1d2ebd9474ef4539eefcff4005fae4a2e98690e3f4853696b6dd. 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/USA2P1955309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf62a51c644bdd1eeeafbe07b482d76a32af484f607b278ae040ed52515025d2. 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/USA2P1955310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879f731a53a3baf9b2839478a6daa5ec7489b92c6dbb565c95bcf6fecb076fe1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P1955311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc367398db17898058a59ea6bb73f3639b8af0d8b1308373b27e15cd9136f5398. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P1955312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f667b200b725d967cd71a48bcd39d05da5fd666b88360d769d566522c9e9d7e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P1955313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60acbb9015a955533179471924cc41ce81ec9c7fbc56a9447c01a57bfb9ba66f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USA2P1955314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe5cedd3150c8d1e0d627273587e96e1a2679918054472563079ec7b73eba34. 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/USA2P1955315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84539729236f3b1847933ef78a0bd5d7788dd0203fb2eaa8621e082811d6e2e2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA2P1955316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfb41e3c01b0c20d852cacc54354f9bcdaaf4a5e09fbb8c16b859b2ad73933c. 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/USA2P1955317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7fed84a558b98f0aafbfb0139dc88c02476ff17e264f85c49ae3c4dedc688b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAII2439560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678845516dd9f4b20bc8767f003256a6b4080c6f63afecfa79a8c6755fc07ab7. 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/TCAHF2391513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b900e7b93b29103bfc7798c0a34346a5cddc78188fd6365c33b17d82cd50ec. 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/TCAGW2323930.
Get Closer With Jeruji (The 25Th Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753918056c78d561274ff88f3d8d56a2179bf392164f8a94aa2c61eea8262946. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/FRX762145679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c5cfcae214ef4d1f334227d1b0ce4514b28512250481cb01f30ddcaf1b45e7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRX762145680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352a6e3b241af0673b8b2159080f9e78dcc570ba2297b84ad6000877e1478a77. 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/FRX762145681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dd7e005ffefaca949203efefb0946bdbe4826455b8a2a9591d37d4c7fea453. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FRX762145682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1c1f1ca0d5bcc0ccfe600a6b4a58ce85d37bc6d0861f9c3e634d00d43481ba. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRX762145683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cf11ccd8a8cbaffa9149a66cbca8cc00e11a0fd18a0c6ab2f0b26e85555a28. 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/TCAIO2405137.