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 0x980a8ba6bdda52fa42e8fcb660a093845376b9788505e8cc3c20916953bd67ca. 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/56909b65-eacb-4bec-9527-c17a8126a72f.json and https://artists.proofprofile.net/proofs/artist/56909b65-eacb-4bec-9527-c17a8126a72f.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 0x6c63f856cba74041c63fa6678d5b59a1a5ac1eabfafb1202bbee4f727cedfeed. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PL39J2104738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2f2eda5b6c044771f4f82d7ff2ceee20768ca8c859119a82c8efd18ab1467c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/PL39J2104739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08289d9612f9067453894ea63d01a522d56be9a876a2501a3cb45d7af2bd941. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/PL39J2104740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08256e7e53664913959d97eb6b402d864424054cc3066396d216c87d3183e3d4. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PL39J2104742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712525dc2793e2e5ed941c0e343e89ab038cc3b868b3c9864e341085b30e9f4a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/PL39J2104743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed2c7d2c9930adfa9293aaf1c886f03405d0fe3b78f97e17fb610c44f8c607a. 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/PL39J2104745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcf827a7b1028d6581252aee874e7248fcb404bf5ccab7d4ad847703229201c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PL39J2104746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f2225ead17622ffad41d69c83f7b90b5132fe6e6fd444dd6435fab5c959ac2. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/PL39J2104749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff7b47f86753b22f75fd35d2c74577367e780e4a1c2390615ec9ac9df7dd3b3. 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/PL39J2104751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9087c76173234141b67f9d380769f799712a318d4101d25807a49228883bb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:43Z), 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/PL39J2104752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dba6b7597b5b3469f3c661ee534ac1840fa0d43c05ea10b02307c29b57dc07. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/PL39J2104753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b9a3f28fd5e70a07f1e009c49d4ee848bdaabab1283402b0f483afd4bed1d5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PL39J2104754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10c1e2b3ad1a4db4d7e562a8865c8bd6f0e40399a2bbcf500b0c63deb31d47f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PL39J2104755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8649bc9dea17d71dd38e26fe6951f998fa9cf5de0a3c0d0760b8af408041b0b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PL39J2104758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6477452e84336ac5de112e1a5bb4415da7d77b8c814c97fe4180dda82152436a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PL39J2104759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b9bc254a24752b50030212f2ad944fe9e700e79387c1f426e2e1bcc7298907. 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/PL39J2104760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60167a12f6cb2ac167cb65ef4dee352dcbd1587060f747b745972bfe094cd655. 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/PL39J2104761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1329d215a4cdf2c5ccd2b0618885a4c78b974179c30cda887373a1996af426a7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/PL39J2104763.
The Classical Nursery Rhymes For Bedtime
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