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 0x152e5247eccf84b0698604da57137b227b197694d2fe63d6d401bac06b883c09. 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/204a0704-cba5-4f3d-a30e-5832a8ee0e03.json and https://artists.proofprofile.net/proofs/artist/204a0704-cba5-4f3d-a30e-5832a8ee0e03.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 0x942bff925df12a20ee7a953334a4e687c38ce0595c27b84c3baf77f761e2a5cf. 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/UK42F2200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5296181fb59778f0939e2bbc6aaaf8a691dbe8206620e17435ad23850c0a1d1. 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/QMBZ92037449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3c0d6aecd51d31a9169434ab56c1f6954812144f71327337fd89b05a0982e8. 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/QZPJ32139157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bdab8e80c378c81d00e853996a20f9fe6d78170062e026d9be03dd390c2119. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CAGOO2181851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b7c95fe8b15a779038f37a211fbbcb5be62803d8aa0bfb13eb306d5a8470ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAHQJ2107656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074eb7145369cf376ba0920495ce95642ac20edf79fd4c5693002fa5854812a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZGWX2038256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5746514a19054c104e4378c8e256ea95ff10e360d8a41d0b238afbc3116b5046. 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/QZGWW2091043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358984c0a13fda8bbe066b9cc6c89c3e8b8c4cec09b2d5d9b8e69661ce969807. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/CACWV2074525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba52deb00a87fc36f966b399401cc2f2e1b2e202c27bab3f51101ae85ccd3305. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZGWW2054852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73e18f189c7719e4a3be5882cd9602ea91650de4961ce7df09790159347dcf7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CALVP2014338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f0fb55646c96cc7d574e3bb80e07d1ae13816baa85b91d72113ab5f6713b2f. 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/CALVP1957151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fc04a51a93c1ec3782ea64dcdb78dd7a2ff171981f9cfd7dab0968b67d465c. 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/QZGWW2014955.
Waiting On The World To Change / 10,000 Hours
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2735fefed6063e663227853e5568844d24b3e9353da3d74df29b99a29ffc5efe. 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/QZGWW1997491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6ba568bcd36ac6ead00b45fd0daf9af09631da6c9bccd7566a1153d9c40c34. 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/QZGWW1945101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc99517f5db93027d9a3648c2eb6e2d369acd657ae114504ad5e489f15bc81a6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZGWW1908191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bb1c535306d465e4760265ee4ac736965b83aa00c0aeb013db92b3c9152997. 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/CAENV1972860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13351e0c8084b4e9693baecd129bc98b232ebe9cd9398ae38f79cfa2778439b9. 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/QZ22B2053011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b38e78e56935b5915a534f9966a7bdb9a91d1dd41ff4a507cbed88b2af02fd5. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZFZ62441648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c130fdd733a859d9435d21c9f2f21325cb611cd6e738b8c2b20de4f03cbf11. 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/UK42F2200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bcbaf5e2140737d0316677e1b4353880cbe24d434ee4cd07da2dc426979dd9. 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/UK42F2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff36df158d42187701bf833a1afae46e5c579fd4ef59c953c2dc6fbfe98bd4d. 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/UK42F2200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e60e6653b160157af223014d32dd3dc60799b3121ee2114ce194d41fdcce4b. 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/UK42F2200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5737ba9d548be1b7af2168e41b8b8e99b0aca3b76f7167b2f7b084b37d6f0d. 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/QZNWT2111525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c0095579bad458aa5a92d262f691615428618f07edd101727ee642f4a93d5. 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/FRR642101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ca888d1bebcc5f8d3691f23c061578ec1cdc91a106b9649efaf4113ac7bc7a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZK6H2178139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947d8d5595b79bbaf33b446bc8dfc208d7f3851bb8ee470b73e23800b6ee643e. 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/QZK6L2155480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0834396e34e136b3a80b3adee04362e454888f8113d820e5dd14aed8994721e1. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZFZ62018824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf793c50d8722a6221ec1c815bfd9bf07a899ffc7114b14efb8d6d1c04f8fa01d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CAHQJ1990335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ebd004f9b2f882048ea5112fffb0259f319a92f118b02a84da7004dcc3260c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ8LD1998178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea7c66c6f9f861b4241287ff8899aec2c884ca5800e2a811e25aeab7a57548e. 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/QZ22B2040748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec509ce43e76b3ee4cecdaa34287b1fc5b88c02bd375a06dccd85a321ae1aa. 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/SE5751856062.
Back To You / Happier / Remind Me To Forget (Mashup)
Back To You / Happier / Remind Me To Forget - Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf902327223167c88096a870551e01890df246acb5704a17af30eb50180e6b2dc. 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/QZ22B2006582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29b56245fbdee8f0709c293c2f41f847cb5b426366f06dd032ed1f10c4afedd. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZ22B1965334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c0095579bad458aa5a92d262f691615428618f07edd101727ee642f4a93d5. 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/FRR642101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1677c8ed4f7ca9459fb5788595f9cc177f7d597bb6689cdf98b82eecbd4ef78a. 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/QZ22B1912655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec8daf30423ce0ac93837564558e95cdf55b2a867bb337169c71a8d4cba792a. 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/CACWV2019257.