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 0x2f0c0630eeafc044af2568f24bb767a857dc9daee5f54d0b5c54cbcc9a944018. 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/b3445290-409d-435e-a549-d8d88ab1b77f.json and https://artists.proofprofile.net/proofs/artist/b3445290-409d-435e-a549-d8d88ab1b77f.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 0x0d287a6cfb24955838d8d16507c79b88344ed891fe5eeb5184f5f13169eaf8e4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCACA1479557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8aeaa9b9a9ce1d81cfb070377e49de3cb34be3281ad3b6c65823a43cf5c5148. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCACA1479560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afb3b89e2e99e19c5cf13e77aacf5ae92ce8f7161fb0b49b260ab4436266126. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACA1479572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17d813d582fc1d2fb4c2f237576bfe176ed5885c7237c2cbf18f7adc757fd61. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCACA1479575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f930c36dd01868b17463e7fbbd60b2897886373cfaebbcc308b3ddc780a037. 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/TCACA1479577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6873096b39014ab5d0ca6170e51bccb425455c159efd99c064c5c43deb5a0824. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCACP1607456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3881d918eb3842524e07213f36a555d824617ed2141e87ca093aec0174cd5aa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCACP1607459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac49eff5e8fa7c1f71b35936468a65845fae2a734133e3468ea60256f369feaa. 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/TCACP1607463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc59d5b915fb090f6c13a9b8b9bc0e1789e7187cfaba415e86afc9865443e08. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCACP1607464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ec40ba29cb8a584fa1e61148ad4ee2fae1724c2944c6aacc5ca9ff2409b698. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCACP1607466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655322e5b21b7f8d2941e4478c4bd1e4be9dafe622369b0616534cd1f33e2bbc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACP1607467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c3e7e421d951777d0c2ce4e8cb491e8ab7ec0e7ddb67e380c818b2faa2d696. 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/TCACT1637129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12ee33de5fe7668623da372d8b5ce92efde931dd8563704b0ee4c3aa56d4295. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/TCADT1894615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97ae9af5399c812f5fc757db068e7a90e2345aaa7863421f0693a558735e666. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCADU1895676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a1d340b5399b03597cfec2dba87b395f717bd0e2ddc7b363ea67a94af75802. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAFG2065343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06f96489c6b7f781d9951e212c5cc2f40c578aaa10a93d134426bf915c5a56a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCAFG2065355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190f70799de24e98704df18ebb58716e7f6ed8ca55da1e9ee7b32442f309bd8c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAFG2065362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5509971aad4725daaea47a90f096efb79344046b786910386134f0248cdaea. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCAFG2065365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb0a705cad7562bc2af7b225ec0a7580b3aab43a0c8bfbdb5540614c57a2510. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAEW2001107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6d6e27ff7c259d5a13b4c4ee3bc0063bd9b3a2175c45ec7cc13450ba9adc4c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAFX2170915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d560ed45744aa0bf767c1d8827ca53da706fc5011b6fc99af95577217ff8829. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TCAGF2225778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c0a036c83cbddb35761349f1260ef79fe28896865f278b99609ee38c7c116. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAGP2270287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624e42022d8fe72bfddfe9d436aaa45b0b4b7a41a61524ca729a0334764bac2a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAHA2384732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc5df63943556944f65b0393be870f22f13a82f5ee57dfb6b4f26956ab506b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA72366972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6b46d75a8f0fec9780a99efb74614dc83fb76d47894ca2d5f0ea53565a6c87. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QMFMF2336530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d272801593ec2bdf467663449f6ff613bbd2315d399c0a7407e6ea29381e33. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TW2415934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a848decce43d81ce0cb758ab9a1e2f2915f807bdc50b8891cfe7e01e550507f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM4TW2415935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d958027a9bf76e0a6964cf62c9c4a8610f5a643de7c7fb24fc46d1331d2cae. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QM4TW2415936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972b9938436ec03571a55b28bd46a4868eff7d9f1eb1a31f3a32c8d9eee63ac5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TW2415937.
La Noche más bella / Canción Tú y Yo / Me Levantarás - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc184b793e2052a7fef1597dfa23cd92300370010e3959a8124171fc43634d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM4TW2415938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9542e37046f6cbf375f96076d5267c5fb0415f2409829d1e9c67a543e32d0409. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TW2415939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c8d55befa7d0e3b75448a453fb68e3d3b6f7cef5d0abf3cb99d0fbe01052e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TW2415940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa335bfa86661ca7666d33e4c43c9496357ce56da3e8f2460dbce8ae8f98be3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM4TW2415941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af5bc26ddd5f875b619709587429adfe3341f906cb54e5920bace4e438968a9. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QM4TW2415945.
Cordero y León / Para Qué / Conquistar tu Corazón - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29bfb59cbb793e6cd246a44afc6a8f8d2a2ad91fe61be4780a60040bd8c1dcd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TW2415946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c0ebb19317d7c0d0cbe30e4c04a35681857545e8a136f01c2ac589ce67057a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6P42421544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004d0714e11db9037bd42b87a790b49338f3e3af90ba0f4725f9a2936d565bff. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMBZ92517872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e420caaf99bc7315f34fe74e37dc2c47693bd66b523709f8dd1ec9b6835679. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QMDA72517149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce6e175f83af80afba4789344ffe6a2faa43d0a8a13a5161e7d59787649d503. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZAKB2531344.