1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x96d34d79a80fd549a5fb6d1a263cd8451e99589dc44619bba4741bcd350ac4b4. 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/56194d3d-c3eb-40de-9f14-9d1150ea4cd6.json and https://artists.proofprofile.net/proofs/artist/56194d3d-c3eb-40de-9f14-9d1150ea4cd6.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 → block OTSBitcoinBlock must exist at that height 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 0x8b4be221f675d728fed439c75e22d57f10daf005db659598fa3c2733128f9d83. 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/QMDA72184631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd15ca267466967debe310ed27603ee5c0f6471d3c537b71dc0597c2a57b1e9. 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/QMDA72184667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63bfb8909029cd4ec012bbe412520e708f83e9a67ba3eb3b8856083857dc858. 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/QMDA72184668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dcd0305b86219e4bcf5bae024adb5e87c3e71979e36cd843e8e7ad671c7244. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QMDA72184645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9ec16b40e53fdd132887ffffbd0328dac1080fbc425c1a1e7723c4147fdbcd. 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/QMDA72184646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59e171d5ca181a64451b3103c8fee459f77fbf93267256a8a5558e2c2c5e5cd. 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/QMDA72184650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19411a6c963c42904d52df65ca36782d18d7ab78da2dbc674d343b315941062. 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/QMDA72184651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bff69c1a6c5fd25cdf43179d4f97a292e43de4d6b4e552e9bda8f831474f880. 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/QMDA72184654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b4f31f45f0c35a99c21802f5fb2975f7bcc324c2b2f38d3b41b165f413b4d2. 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/QMDA72184656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb7a81ea07e74117061d9602e092d85d8967ce0e44c8069b9ffea0d3dfcc5fd. 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/QMDA72170222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9925c82041f392890f8cc8c08e2c1de430d09a1ff30211f97f84aabf025f8e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMDA72170180.
Guerrero Victorioso / En Sion Suene la Trompeta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7673cb236ae5526475108d2ac345f03d600b1488e82f95b49454532035a839fa. 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/QMDA72170183.
En Jehová Esperaré / Tierra Santa / Te Exaltamos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233e63620fc7181af8c8e354fe1220a3ead9b86e81a95db2b18d5de831ff767c. 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/QMDA72170187.
Mi Casa y Yo / Grande y Fuerte / Santo, Santo, Santo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90ea2fae0237a0b52df5348f04dbff55157e7497ac25c437c2bbdccc5006e3. 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/QMDA72170162.
El Puso en Mi una Nueva Canción - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec6243c154aedba9205fdcbf977179ea4d3a3636bd2a81a73c1a45dbee0701b. 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/QMDA72170166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e09eca33b5308067ed8cdb651088e68fc73e823363e6a279559443506a1dd0. 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/QMDA72170170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60e9396826909f138a112276960256a370c5051f27e6b65c3f93b93cc40a998. 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/QMDA72170134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32b56071fc6a277d9bbb1efdec68e683e38246f7f3817570fcb19b29d8e0ab7. 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/USDY41959219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b96cf6c075c0ea4dfc9657b4bfea8b521e4d374d6186bd0cdb8affe73861ec. 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/USDY41959223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34408d65e0b2f2f88be238eb9909bca43f02c60c95674391769e08e5fa7ff79c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM21525921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86234cab599002f82088df3d09237809ab97c71edef2061c4b1297eb7d33e6ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM21525922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1d97ca4d1b314d5109e525de4dfd5889d6f30f27cfaa4a16b79922623ccbd8. 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/USHM21525923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86796336646725e49bb40714b93ef9c9b0144ca605215eab2ce7ebfa1a157c3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USHM21525924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2ed115321ecd54a0d76f8411724fc57a1f801055ffa5152f9ee78c88800157. 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/USHM21525925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553a7397edfbd24b649fe8499b16229622cc48a87c448e825e415b835c0ec690. 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/USHM21525926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389bbc95cb493247772dfb841d52723bf16e6cff790a624ad2f28d834c2764d8. 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/USHM21525927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666e071d2c1e197f334ab96de9f3002f9f3b619e861b1983057bdf3ce5863923. 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/USHM21525931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1b8c079fa32a5f43e0adf612caf1d1969f08fd87470909c91a653eea741a39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM21525932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0161dacb29527517be477f03eeab7da4d78fc480d3db6b4f1b978c309a4ec3aa. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USHM21525933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda85073d90d571827366f5e0fbc84b8adb6dcf193f60ba5af53ea681a9f8bf11. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM21520741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fd383f5228aad0b8db11700955e7490d027574b1c23f537c2301e4d6b3fec6. 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/USHM21520744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9816fae985039d822c3cad537230dac3c562961bec52872356f642af38453f78. 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/USL4Q1849835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04dbb892a32b23dc5de0b35f09cb85f4ccf91245edd075b2e2bb4146e1b5d7. 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/USL4Q1849845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7b542099e4adc6f1c8ec9ea3e0d3e32760e535925dc9c247cddbf049759e7a. 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/USHM81378393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186326fbcb42884a5f239fb7b6fe9d529e158b3eb405691f4283bf933f8cec51. 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/USHM81378394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdd71c8c3d1d3b673ee769d0b00dd18d640da8f8b73d8cb83cf29e842f9fe76. 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/USHM81378395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d85e396c19ac6667acd2f865839d970d3a97ea91f9c0d461b36cfb3a4301fcf. 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/USHM81378396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300f9f5f156a03ba7a00760ec60b54cf517301d52f50fcf0b22292d633617422. 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/USHM81378397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cdc414e84cdf1220fc74af2bd6a3c8b8657dd695a829beb7f0e47b27ab5cd2. 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/USHM81378398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f47874772a5aa8bd0c56e7f69604249e71bc59c18193e405a62b90cc7ffb0b5. 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/USHM81378399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515f4eeb28aa9a232b862c97a80a71fdec3144b3308cb10aa0f02aacb176d8df. 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/USHM81378402.