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 0xf72725ccad51080297eb20699b658e9f0e7d1b94b01c0a887eabd4a9aa324598. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70818216-34a7-4dc6-b9f2-9d0b576f4b4f.json and https://artists.proofprofile.net/proofs/artist/70818216-34a7-4dc6-b9f2-9d0b576f4b4f.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 0xf0a8a1b8bd6d79073341519dc2410023664d86b6fcab3b90f4b65671741a337c. 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/GBMJG2327898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1a348fb7db717678c2c17b409627c8e508968e2f4c9f798f94fa5f6c611fb8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBMJG2327895.
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
Rodizio Musical en Recoletos Madrid (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910eeee20bac215f2200100ef6a457c8a2b0b3f92238d36cbdf143306192ffc0. 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/ES33B2119902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845469426977e8976a83198beeb95d9d6a0f8145d61f29a877da82ab683c347c. 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/ES33B2119903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa765288f52612521c7e9bf4d136c443226461525160a03af7b8a0f0f64782013. 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/ES33B2119906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc80950efcb5bbea40dd810ab99b8be3f65aa9db34e9257f74ee2552c5bd54a7. 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/ES33B2119909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6379281f22c09eaa50b849c33c48c06af4ff42aa8b020da86a81664b183c18. 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/ES33B2119901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85b371c91726043ae6d63e2929e19a0736a325d9cf3f740b9b9a328fe676214. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ES33B2119904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc8a69bae23f9de2433e9c9361cf184d54726b7f5ad697acfa366e50de29039. 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/ES33B2119905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7f96b528b46295c81acdc940db90b9bd9fdb12352582f80c0ee28f0b907cd1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ES33B2119907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe871bd2c3d85c138afcd2a330f57ac574daa40f94f90825eaec48dc4d71f951c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/ES33B2119908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0384d9095bbf513485c31cbb5f7984f9434d71dbdbb7f6adb49325d2df4a8852. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ES33B2119910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8efdde7c356b627fb567e3559411ae92091249bc49192518efec7c40444876. 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/ES33B1815403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b28a70e4b717e5e76912299d148ca9095d6a2c56d00d64b432e16654724fee. 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/ES33B1815402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d0ccb6d2a31850aa499f7c7d109999fcff7ccf76cffa0e82adc7c58e1363f5. 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/ES7731102001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72220f815204f4c7b6549acec95f01c250210ea8d2c1c355f7857c2deccdbe8d. 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/ES7731102003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3da11c2b97e4e89623c39d4d6d98b5d2250c9ae88f16bd873a1c74931a0512. 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/ES7731102004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3c186fe231073206c1942eafe00eac0c20fa90f5e0cc273567300da063d081. 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/ES7731102008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14359e4c57e8ecbff7a4d82639820853c0d03e98c40eace77e25762a63f2d789. 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/ES7731102009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab318f5b6bb5509c7ecdcd0f152ea566dcff05f7dcc9f63a5e550169c5768618. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ES7731102002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4dbdf78ce3a51f741f39fa22dc9dce8642871853c2d694343c8ea21ae9cc87. 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/ES7712263601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58bf4039a86da512337d1bccf3355248119f2932d8ab69f56bff581bbefb42c. 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/ES7712263602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5addbea2cb91ab81dd0ecc94796c039b83baebe81a15c82059e32e2e38da05a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ES7712263603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591352d7b2597ce9410e6b51d985b70d5ed4f9cd47c471c2ec6623f71247fe22. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES7712263604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651cb15bc4b2c9782e3acfbeb43ba8b90a18c8078705d860ec54c2888b3e998e. 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/ES7712263605.
El Geperut de Notre Dame (Original Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979591e1fdfda2ea90d9ce93dd245bcc2f23b690ed3d98e3dceabf63975dcfaf. 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/TCACA1467316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76c5451a7fdd1bccbe89c45d6cec3fc14b22ef8ef5aeb30e7b13dba64134a4e. 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/TCACA1467317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b458feb5446f128c9cd6f635c13817bd87b7dc6366b777af4894ad2eac15caa. 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/TCACA1467318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7585f8106883a44aa1c3a42d1e03be0112bb1d9d8dd0a6eaabbb972f13adab. 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/TCACA1467319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0285d28034a93bd42727716804213bfe776751849f0986ef92bc7b990fad925. 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/TCACA1467323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2014742fd1cc23f261b3bdeac3c7db5dc4c07e4e5682abef4401d8389341ee7c. 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/TCACA1467324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1a52fb5026001dfb2ef8b3ebe25abe07b81ab1fd7700a14d6fc256db5e02e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TCACA1467321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd466b1efdebe1011075f596d8fddadf0a5921bf87869f1a709666869a54759. 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/TCACA1467322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae714c33491631483fa1153d55941026fcfb62a7ecf022d03deae7489f39b4f7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCACA1467325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3074c20259abd6a803e39de4f0449b0a6eb5c680218fd2a87ece0adb3bac2c26. 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/GBMJG2116809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12a44ea0acb96a80a8f3ba9fd8643a39a7833232ebfd265bea2c8f3ad835142. 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/GBMJG2116805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fcf91c4e57babe528a63f641fcbed4a282acdda7a9aa1425af5052a3439b9b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBMJG2116806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd6312a87a057021a8c9472580e3fd310611848d0aa44305052a23cbd4c9dd. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBMJG2116817.
Después de ti el universo ya no es el mismo