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 0x351c90e25b8661aa28a13affe950f855c53a71e153e9f64393a1f261ad7de5a8. 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/6ea5ef42-1377-4b21-9cfa-03463b1295f6.json and https://artists.proofprofile.net/proofs/artist/6ea5ef42-1377-4b21-9cfa-03463b1295f6.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 0x4420b49dbfe13a3dea144f5e9e78ebbfe64de98b670cee46e2e8854e095a8495. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ES5151901300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648a592f255bb2d208ba83737569fab7e0874bbb2cd7b358c88b8566e2cadaee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES5152000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3385b6dd44be3759030722cd93e738c4f20e3c3be30384429bd65bd56d3b736e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:55:14Z), 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/ES5152000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727dd1ab20dc043bb83724a61ace79b65e817e0107ffcf2847490ed464d2ed70. 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/ES5152000095.
Tercera guerra mundial (Directo en El Sol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9929171d4ed2eac774e99f67bb6a83eab2a99d64ff2c452b9a28cae7c0b6ba11. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ES5152000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25168197bcece63c7c6f851df589e4b1112b979ead4239783ba9f8f893af5cb0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES5152001210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4264402fc108cbb10db36c3ece50482980d0b46d76cffc6d2b263b9f8abb0b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/ES5152100488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9e112717d2c0503fadbc9f3b9f4d624a9859acce950529bb3e6c445130dae2. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:22:25Z), 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/ES5152100861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427644c9013875834bc44b4b34cda4f7462b427fe8deb947d34ae91b04a8c2d5. 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/ES5152101198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d5f3d67cb20c1088654630bf3e0b65e60e700c92e949217c24fd0b5749566. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES5152200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d5f3d67cb20c1088654630bf3e0b65e60e700c92e949217c24fd0b5749566. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES5152200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25168197bcece63c7c6f851df589e4b1112b979ead4239783ba9f8f893af5cb0. 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/ES5152001210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a27292beac1af99244a0da551c29526ffac45258cca50845cab8f997d345ab1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES5152200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd9d5717d0a3b8051d5a8a61168740ef83f5cb008861b393180000c76e760e4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ES5152000823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8ba536a14119137ed0155e441c04de7aa87a6e716b7d86eff05952c676e312. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ES5152200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509778b60a1b1e556f7e803a7e06276ac31573c8645945fe7990090f9ecae83. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ES5152400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66678ed4ba0c0dda39b18614ce5f3b3cbaa591c12821fe9d05f005823ea5e55. 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/ES5152400531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5950355cb262000b6e363a066760715cf755b35f92e1ee89dcf744738ef8eed8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:51:19Z), 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/ES5152401210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2b34bc7daa78447a7f55ff5260134724b71a3d704f8241e76632b12d918d30. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:29Z), 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/ES5152401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf652b455603ab2990ad40df19d9f0ec3f86ab710183961b2c2351e3449ca76a0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ES5152401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6bbc323eb2c171e91fae896e12645183449e4986a1908f6008c42f7a6d5942. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/ES5152401209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd794fd0828b676080ae58f664d1d374e444b7d8b47b5eec75f68f93ad5156634. 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/ES5152401207.
Mi peor versión (Directo desde la Sala But)
Mi peor versión - Directo desde la Sala But
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79b6fb52a6b3c55993ba32d7d978f6424b593e8faf48c788e099665db6f8a8c. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ES5152500546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc62592a240106f61a25715ecf61104bce01184710cb62a21e2ea2a5aff3323. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ES5152500561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d6bdb547bb63ec58e3fc87addcaa135f754b83241b326489723704321d26a0. 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/ES5152200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe343eec5e60356c67faaceaf41048a223ef1048de86f77584674df62ede61cfc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES71G2217364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c797111aa26a813cc5913dda64d628762600d19fdb086fd845649b90086ea8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5152100794.