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 0x67be8e42ebe5816f109b0db9bb7733c25a2edd71684c4aecfab9b6f8517e904a. 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/92f28903-c480-491f-9c06-8e93e97fada9.json and https://artists.proofprofile.net/proofs/artist/92f28903-c480-491f-9c06-8e93e97fada9.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 0x16bea067cbc1f8f9602e4f46ea102c61400bfbafac4214cdc4fdd38bfdfae68c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMYW20600387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3e6133c4ce183dc7e49a5cc99b5af20f7acf7804ff6fa6868e9d48c3cbe585. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMYW20600368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c927909e9849128430d4c7d2196f236d8ea36dbfde159f5e38b044e43495422. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES7930205637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98157fedc1dc9851b0f5ee36c98e96e3a4c8ef22674f7776d26d975fb9e129d1. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ES7930205644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1523f7b790b418a277ffa635eb8fc59a2494a2fa1580c647120ea1c5c66708f9. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES7930205638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3101fa306a6b51f0635ac77f80ad17ac2312345cfa2347fc96706b93d238d36d. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ES7930205639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47eda8e2013657defc8619fddad980887a358ee2c452bdbb55c9cdfb6ef61840. 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/ES7930205640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437c7fef2886173570943db09de7503da7d4fa15251f4bf101bf7fa43580e89. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:08:22Z), 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/ES7930205648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25ee063d4f35b440bd9fc8ac308944b5b5c91ab281a36c598465b13a9f45483. 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/ES7930205642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42a0cec509e2fa723edbcbbcb19455bd17e7ca395847ac167fa4c97a628f5a0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ES7930205650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812ef9e9c8bbb4dfe79c6deac6ffe117023dce8a27ca2e5165f610d941b7e83d. 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/NLG620415217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17325b0215986c5b5e07ec604adbd62bc5bdcc524fe57f69b12be6ac5300e2d. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/NLG620415221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69546f920887505a32754537c3e42a6fe75795740763f13f1e3709d57b0d07c0. 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/NLG620415200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c14f66f5a862c65f236a4fe33858da6bdc57a2a4d26e2adbf64e247f088d90. 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/NLG620415210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34552bc0392efe733ce42613378228b502271610cd469b5001bfbbfd9d3aab3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLG620414796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94546deddd70ca14226a8691e69e954b0dc990302497281ecc93fc7424435fba. 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/NLG620415194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d84eeb44f78fed49253e25a31a451de56e31e92d9b927769aeb71b4c0ba6117. 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/NLG620415195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53b927020ef33f369c7653ee1dfaf22d065056744687fc82b146802d8843724. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:03:32Z), 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/NLG620415196.
La Caperucita Roja (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc139ab245441ac6067b80ace07acb4f389d41a1de82609c3b5b0b79d84abb4fd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:12:00Z), 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/QM6DC1532894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e829b990c8df2e19e49a5e8d72da705610090e7357e9e5d32a2a8cab4d689c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM6DC1532895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1744627b4df48af39955ef6b50e0a5848b75c6fef255eb09337cf4358c25c0. 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/QM6DC1533494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf39cc5e377d4f59f3544bfe0ae7e11393c9e1dbd758796b74e966240c30d26. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:08:02Z), 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/QM6DC1533495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cced1f9c44ff758492bcbfee07b17b785825543efda1825c19d24067124e85. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM6DC1533496.
Los Tres Ositos y Otros Cuentos Infantiles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4e59ca0e88865955ebad28e4e119da217fef49d6b7d8b1a344664850f83ac0. 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/ES41C1600123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75f028a07864b34b246e4455aa50129f087d15180a3d0e058b44deff774c9b9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES41C1600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44c2ae512a948b87b5d080720b7d4994eb88ce99630a630767287b93042ea93. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:13Z), 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/ES41C1600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78febe29d091ca0374c5d80d10eae3761e1b364ffca424f058404ad610e18eed. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES41C1600111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3b086319de369b142557b37a1bd313263482f6d71cfc92fd431796788183b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES41C1600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b009b4d5d266a8b32020de21504f0d03a1cf06ef48ea6b1f42b866c22dfd1d8. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES41C1600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0dc659c4f22679aed8264545d4e884fbf3ca7d70f77dacbc26f394aa2578eb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:16:29Z), 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/ES41C1600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27f72b5ce14ae5f111856397f8f31ba711fee058761cabee302a16fc334e6a9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ES41C1600121.