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 0xf73a4aeabf04a7791974c16f9d1de78797ccd2e335ab6063dc5e19ecab63fbfe. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edb4ad0e-b074-4591-9f27-df0ed83e73f8.json and https://artists.proofprofile.net/proofs/artist/edb4ad0e-b074-4591-9f27-df0ed83e73f8.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 0x8cb13af404923fe23820af663559e3dcb42339ec5b5592558d84fe943f7fa431. 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/MXUM72001466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940777ddd2fec47c7c9fb798a6e3b6f8dfb99bf678c93bb4748626e49a6f7280. 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/MXUM72001470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845d557f11c90f991651a940cc2b7db770f03b312d5eb28e23e63a8df3fbf3d. 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/MXUM72001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a86ded5bd84160d4e8808aac7776c59fc48509e704c32351afc9eedb074a7f. 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/MXUM72001465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d9f80fde49fe81fdda656bbaee7c30a3044b772a87d7c630693190e0b4bb97. 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/MXUM72001468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845d557f11c90f991651a940cc2b7db770f03b312d5eb28e23e63a8df3fbf3d. 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/MXUM72001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a86ded5bd84160d4e8808aac7776c59fc48509e704c32351afc9eedb074a7f. 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/MXUM72001465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d9f80fde49fe81fdda656bbaee7c30a3044b772a87d7c630693190e0b4bb97. 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/MXUM72001468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb13af404923fe23820af663559e3dcb42339ec5b5592558d84fe943f7fa431. 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/MXUM72001466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d9f80fde49fe81fdda656bbaee7c30a3044b772a87d7c630693190e0b4bb97. 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/MXUM72001468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845d557f11c90f991651a940cc2b7db770f03b312d5eb28e23e63a8df3fbf3d. 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/MXUM72001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a86ded5bd84160d4e8808aac7776c59fc48509e704c32351afc9eedb074a7f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/MXUM72001465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323478c9d2f77a837d0e7e1a4ebe8f9d2d800bb0dca774b4cb06e362e6522ddb. 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/USUM72005111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d9cb96dcf12e075bb62add97d68dac837f4404b9064e9e8e9caf5c4e3db903. 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/MXUM72007429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea0e89b658b5ac26ea0f7a7a71983746d723c65cb8c11a99a13e4c3ec3826bc. 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/MXUM72007772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c0873239646a375958204788e7820750d36c756c9f78f20a2ce200195f1189. 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/MXUM62000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fecf7bc2cd14e1e6bb158f6f461916af29642385437bbd28db57625cbfb77a. 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/USUG12003689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066f2724e48437d4156c44389a8631d7824d36d3cb8adcc24317311a449c8d01. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MXUM72006976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb761021725d93c9190473f900f4231e2065e7be4dfbf8fea34043f7d5e585e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/MXUM72007048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eb4c17fecd5d1c0cba9b02b6b965ea156c16f22d039fbca4b2bb884cf57ec7. 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/MXUM72006744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b3ecfbdda043f54d5086d5614e7561ed44d2201a1d3f3bfd6d606314eb3481. 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/MXUM72005491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845d557f11c90f991651a940cc2b7db770f03b312d5eb28e23e63a8df3fbf3d. 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/MXUM72001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9cce52dd6f884ed8a404d6baae00dd981bfb28491ad4763267abeb491716af. 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/QZBRF1813584.
Y Si Fuera Ella - Versión Acústica / Una Noche En El Teatro Real / 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6098008e0576a18211cbc17cf73af9fc2d370dc841b74bdbe861eb4a391fb4. 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/ES5701100913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b2a6859b4af3b79831140cf3f1e0f46c2ea06d4583baebbde985354f661c8. 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/ES5700902327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e35b419e6d1c2dc96b153dc66d9e84e32c6bf0bc1cad40cd1db74cc35924b1c. 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/ESUM72400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870dc4bd5c054fb47273b0f96145a669bae88806d9341fae87147a1a59fac65. 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/ES5702002178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe197424037b839565bb18ec8f42449155094f38e08e645d0668ce380cf148c2d. 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/ES5701701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d2a68dbaa129c1b00f88412e99201a61aaafcf28ef7948f279e28597472998. 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/ESUM72400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c680d8530c6bec757e8162bd0f8dcae7741b6b73e2a0430bd78f8392c0e129. 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/USUM71505778.
Y Sin Embargo Te Quiero - En Directo Gira 2005 La Coruña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320f479669eb95439791f527a69b8029dd02c1f0eaca5b07d9a9d5cf274efef9. 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/ES5700501180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0a58fd696d94a4b11beef06c374f0adc0114173528d74afc388b64acaa817c. 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/ES5700902429.
Procuro Olvidarte - Operación Triunfo 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e588f46b14395d80a6051800d806b571a4817b2e252f90ae56dbc6f82b5a53. 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/ES5701800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6a39a4a797163c464c3a88cf05a3fe867e1d058bf98d1fe42ecfc799431ff5. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/MXUM72200471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e8fbc3afb59de70573ad540a8c512576e7976298065920e495ab3f91b31713. 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/MXF060700557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dd8e862fd90fef1fec98694fce2ffb86722d73ce34cd941ae27327aa091ad8. 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/ES5702000951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfd6ff4abaa01b8854c6bd64313227f1f59d9122a8d83d14e406cacfe7c5cd9. 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/ES5701801156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858ded7a7ab7486713e9514252446de96ff8782f817f2b300c3c426cd23fd6fc. 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/ES5709905805.