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 0x1527ae589c0ea48aa9f6959179d1e9d9d8aa1b9e14aa050bdefeb495f97958ce. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcf56505-1383-4e09-8ca3-fb7c8dcff8bf.json and https://artists.proofprofile.net/proofs/artist/fcf56505-1383-4e09-8ca3-fb7c8dcff8bf.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 0x35630a214333b97c49cbade6ba6170822c918667717b2cecaec14276ca5f77cf. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZES82017503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee845acddd2786155ef21d59ddb1112a389b6989018c292aa1de3e0277b8858. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZHN42071400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbe853e04b099b14ccf620a3f05019af4ac25b7773bf6a33e2acdc2a08c0e75. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:37:21Z), 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/QZHN42071402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2b62d3934b8583b3359a05bb668dda4a3c3cceb28fbf17dcb83ab2d5807c20. 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/QZHN42071404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8b06bb5f151d5310ea068140f97b30abc32cd1e764a0e8a740596b7c18ed68. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:20:34Z), 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/QZHN42071410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e583b0f703b5d32dd261a1b7c7b6d46513b44329a354f5aec1d08b171b38a7. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN42071411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa94bac435aa02e784fd7d8916711f1b25e352a1c4c02046652451dab5e58901. 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/QZHN42071412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dc5707c69dd5839af83b06f7ff26fa132c7babc182942f3cf21cc392d32fd9. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:32:00Z), 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/QZHN42071414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2bfa42c240c85b3da70906681ead55c630ce66f6601097ba2b33ed774d4b7c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN42071415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f6b25c0d781985ad2c53aea572e6dcbf49c88f41442f75c8b5a47cd323fa85. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:59:32Z), 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/QZHN42071416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff75d426c0f4430e94286818ac2f3641e25df31055179bc425f262e4693d375. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHN42071417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638b57a1426b8678cef45e9b50da7d3acf87bbf8d00e0bfdf481e1bebe101334. 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/QZNWU2187432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95107d9d2ef0db18e6ef3c4f59ba4dc91b3a28f676ebba408a3582f52067601. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:28Z), 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/QZDA72282341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca10c1091af716069247bd5586284efb5e1febad5691787445f1b9deb3d808c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA72282342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c99e54d5fcb3cfc667f4140d478ef5214a15b61dd2cdc459f4b08b52d654039. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:09:10Z), 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/QZDA72282343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2c7b6276e60c9bd70b883c3dad66f7b40e65b0c9985c419bc3220d3d65fb56. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:54Z), 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/QZK6K2204452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08852d963abe7e4fc2d233c220d16470f9ccbba2d2a5abf4df769e5f80a5711. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZFYX2397738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fd97cd4a43ac785818b8022a5ae56aa4df2d62f5c0aecd48b0b4d7ea41f8ec. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:56Z), 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/QZFYX2397739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80b125541645ceb9cc192e50c13d5a29b3ff94ccdd8b1e8f424070e37afcb2b. 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/QZFYX2397744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807893f41513fdea87607baaa994886984027cd48da2a4dabe1b41c29c3bd94f. 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/QZFYX2397745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e42acb1871e1f91d368c73eb2aa4f3664da4cddc31cea349daedfca7b6bc260. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDA82414090.
Pupurri La Risueña y El Son De Amoltepec - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c7bb99f84813fe6729d0ba812ac1d7cdb2804516d31c786f6c88af7bcdbedc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:02:13Z), 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/QZHNB2438907.
Pupurri Tamborazo del Su y Las Amarillas - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a029d8306a34126a10deacb918fcaf2e2a2c88042899aa7f4c279d90fa6f1f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHNB2438908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1afd8aaa0487ace5337dca7a79db5bcea593b79d7f3fafb2972a4fcaef144c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZHNB2438909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6102d5dd69b391dc5985c6bbdb485f17118c879e72a61b706aa18ed16782a10a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZHNB2438910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03156ea9010a643b06f8db764aedbc0cf2e8a9dbbcc7a121f0da5da51b3fd1f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHNB2438911.
Pupurri Las Bandas De Mi Tierra - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827cffe654c5bc988c43eaa347e1aa8b1962c8cef73de5b394eed0e128d27788. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:56:09Z), 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/QZHNB2438912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6805aa44b159e342f92ea4ef69b18d68af9db2cf33b33c2cd4e1ce9bf34ec50b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZHNB2438913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ca15f0c091465c956951e3c87a872cb8f90a6350fba2115e91288b99746450. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZK6H2589358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8646e78f6bb45af4bdbe2bc969738e72aea4ede75592235807df7fec2c2f8bb9. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:22:59Z), 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/QZK6H2589359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5f60d727d66ea543533637029be9e5cc5e54354dd7839f5e927d534d9e7b97. 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/QZK6H2589360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf85fbf3fdb91ba9a473affbae3711a9409ac33780d1a8929222013c3de0d087. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZK6H2589361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e4dd0f7bc6dbf077915368bc78b3eca16acf8a942acf6766537eaf792b022a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:48Z), 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/QZK6H2589363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce808256d637dbf20c6db6ad84482505127e64b7cde4df7689455f30561faa7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6H2589364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018c6a425d120f277a979a2bab74f05a148cbb772fc971e9e6d8cfad761920ed. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6H2589365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce32db701790f55aa05c8bea3b4d738bc73d1ff9fa658c73e2a243afc2cc3fb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:08:49Z), 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/QZK6H2589366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8d017b9139937132d0d0bae6e0a82140334261b1a020198e7b743b69c1d278. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:17Z), 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/QZK6H2589367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee45d2000846f90956c790f600b56c0c510f6160716d7dbd18244f9b8c32ee9. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZK6H2589368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f5c8a80cb46bf6d1ba2caa60c90e852c3f09c3359440a2dce7b0308845c001. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6H2589370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f588207af6c7b01671017afbeba798bc82fda34eec871302cc73a8638ccf2a0. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZK6H2589371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6420de2fc56dedb7c7e0b54aa4014e381e069975d28b2454c9d5480563d37789. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6H2589372.