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 0x44e95c8cb1cbc705e1b1a153ff2e04679479f53f9aecf9854cdb23a0768b50b6. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3188dfd7-72e9-4e39-8d42-5e952f29712f.json and https://artists.proofprofile.net/proofs/artist/3188dfd7-72e9-4e39-8d42-5e952f29712f.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 0x8789a52ae14f6c0844795276311282cae10ee042dca43420bb1231c9bf019abc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCAEH1994998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055df1a1d53899ce9da73717c9ec1ee492d393f016603becfd65f1469893037e. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TCAEH1995003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a6ffb7aa19e73ac34973f4f22ee042fa9f2432575e553cf942583e31e57138. 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/TCAEH1995011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ab8b875d94f10fbe5f6720885d66f916ebcf2d3e549bf80aa28b2645ca766. 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/TCAEH1995012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc70f86f706c3c0ec0c68eb18facda5642dd15e88511fffa02431c04ca401375. 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/TCAEH1995013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123b481fa4fa92bc298d96bcdd91470058bd76acf1384918f274f748a3b6b5f8. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAEH1995005.
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 0x36c0fcaac46a8fa728406e18c5a0aa642783444546ac06b6d3fa8af9f6d7d9d9. 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/TCAEH1995006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048bf38e33059ec96856112ddee6c65cb639111f6ea7a32032457e5adc3fb1c6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCAEH1995008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba18d68232bd8f0668da5ae85f37cbdcfeec8b07a2f7a82d0acaa8741dc88d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/TCAFS2181847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147a3e852caae7abac1f2ed7975cbbc77e67797cd14a9446143ed8b179d9382c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCAEH1995015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d318fc1f30d67a0188cc766ff8444d878a56d58bbf871fd44ef97ea8138312a. 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/TCAHI2394314.
Where I Come from (Welcome to Little Haiti Uptown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6099553e2b4f941db25830e570d353924b178f15affaadb92d4c4ac00e9a04e. 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/TCAHI2394594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3455b32b6eb2735fcbfbd15e9d5dcc51884def78340ecb18db9e7973d65c57. 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/TCAHI2394601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7bc848910891d0c465890d4e6b7b23e602429046f2a293dcc2e99303e7343b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAGD2200342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a132ab2baec18b2bfed26457693ff393ea646535f27089f9bd614d06d551d3. 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/TCAFX2162344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4261de8d48005ede8e8418ed5637585bcde9a22fece2f9ddffee0d1de3232428. 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/TCAEC1912435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201632e4b7cc713d45ece795817c1d619f39fcbf6688e4654da376841094a900. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TCAEC1912395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b7113e0d0ed46d5ce95b15301085c7bf1c1b8fe0ab6c92f95564171df076d2. 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/TCAFB2011809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18ef3feca5708bcf3d30d0354f6b3508faaf903b48b49831dab20bf8b0dcb9c. 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/TCAEA1815297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e8889f69b7e775b7f08e59c6c0af383f017c84d0e3932aed3950c28e073f27. 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/TCADW1813523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc8224bc2d5c0918e4a30036d4c537b43a0ebbf9643e332ef4708ef553b7c3a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCADW1813526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0e2ddb00922303fdd4faa846c85ea15d7329db4aa445b729147d03a91bc212. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TCADW1813528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6051642cf53dcb41eb9a45596878fa3fa92593b65c25b470ed7308841bfad0b6. 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/TCADO1839118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda2ef58c930118d95bca7c3ffb6e0cb0c6bc351ecc730a49723915f4480aa86. 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/QZNWZ2481516.
Right Now (feat. Sam Sneak & Mirror Monk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70122ed9c09421c2ef1d9d501dfea8218f79a6037ded99bedda526a0e332faa5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USUYG1146729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf64048c468e9be75899dd5c394b3839db37e196c2f0c0dbd029fbb7df124968. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/TCADP1836864.