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 0xd1ab9d148986e724201be813e42ca4e44e8933758bdb627a3033c32e7b9c2c3d. 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/449790cc-60e1-40c2-8dc1-7843f3e0e40d.json and https://artists.proofprofile.net/proofs/artist/449790cc-60e1-40c2-8dc1-7843f3e0e40d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Junior Einstein - Get Smarter with Baby Music, Build Baby IQ, Cognitive Development, Easy Listening for Children, All Kids Revolution, Background Piano
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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 0xb50cc75cee893741562d1cc406ffd7e5269e3cf2bd3c15d5338deca01db052bc. 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/PLL432006927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900e881efd078e3326dadd2a6b927a8d44a93527907839e3c87c65bcacd22ffa. 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/PLL432006928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07823725d1bca30e8ca459743723baf68961c816e3eb10e929d2c5354a9d3040. 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/PLL432006929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fd17a0f3a7b4eb6e62f3e9b956afe151130ea3c936805a4485f440cdc6b3a4. 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/PLL432006934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223b51a5b66247d2ad90692eda0ff8519053a2e91e6a1e9f45f613ade171a110. 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/PLL432006935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14bc41161f104b321df74b06f94592da9004ea2f11fd93ed352ad363dc4b75c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/PLL432006936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff327fd5df052525042f05ba78d979438a4d3f50bcf228306707d257ad7eb8a. 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/PLL432006937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e51936ea71e7c4eb0d8ba954ee753a8777ce86e1f422828ef1338601719366. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/PLL432006939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa174adffdb1dd013897d1d77428e29a652bfc1eec569d431840360afc3dce089. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/PLL432006940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb425ac04aa034ff6ee4a0b9b4b94aaa4a03daf85d89895698aa4f2dc224713d. 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/PLL432006941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772cb5c07bcec3fd3e78fb4b710d45d7e2bbee9c8354dae8c71f96708b5045e. 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/PLL432006943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bb58af28e8642742138727dcc82801f01a05f30195c4519d94e4f984f1504d. 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/PLL432006944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c16fa17dfbec19c016f3c29243d28767e3c96e17667c5a3b5c3655cda28ff4d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/PLL432006945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef71a9a7779dcff9c62eb4a54e18713da1e3ad541e5c56409257bacde6f5b0d3. 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/PLL432006947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc110e82dfaa01c192e159271252de471999c91d4c38ef0311877c96e539ea4e1. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/PLL432006948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea9e16da6875eb72a48ffd8f617e7d9d3e8c740914922ba744e2878303b38f4. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/PLL432006950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8d5dcdeb4d57e050fd6d4f7b5e5746e47b0881673bb4555a1936b3fbf3fd70. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PLL432006951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5003a7c530c4b94b2f2d0f702e84bce5f4aefd5af24ec884b3e7ec527f4c1c36. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/PLL432006952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f10d951ce9d43bebd74e38d1367caa434e073bfa01fbdde187238bdc27b681. 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/PLL432006954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6cbbbb64a23d543b1246409ec5373c2038692c079e34069bda1ec386f4b961. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/PLL432006956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584dbd9b576341867fd8d383f1df8c9c3e651a030395656d7ddf2eef2fee11e1. 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/PLL432006965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c998bc5eec9f5074c027562ea4fa51c9cfd40fe0e623d79bf3fd48d54b88f1. 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/PLL432006969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dcf5ebd4e186af10efc6532cc9fb185a519b2460ee309c67b085259c78cf9b. 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/PLL432006971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df629cc24a0377d48621ada494c94fa152c062797efe5e00cc8685f922b8b5. 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/PLL432006972.
111 Baby Cognitive Development: New Age for Junior Einstein, Increase Baby IQ, Clever Newborn, Relaxing Piano, Toddler Playtime & Sleeptime Educational Music, Stress Relief
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62245b09706e475c010647f95b9bc3af4c2deabb57a1d928dd00d97558264a90. 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/PLL431622791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b051e7ce15b01419481e93027998ff517c06472192e55e2ffa53fc146f8116. 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/PLL431622845.
No More Troubles with Sleeping: Indonesian Percussion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3676d1990d75c63cfd765f2d7c90f9f5f70ee9a04d3dd6f851064b2965f0b4f4. 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/PLL431622847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868790bd41ecfe31713a0d263fedd03402c3d321ba1b91c22b60c106ace19e99. 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/PLL431622852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7657275ccdab42b6552290965e76c031f7e1fb3667fe4b454b9e2b178fd841. 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/PLL431622857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad619cffedd91c7b2e7e2bc0d1631790dd24a46d168f16924317b860abaf8894. 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/PLL431622858.
Gentle Bedtime Meditation for Kids: Music Box, Building Self Esteem & Confidence, Baby Relax with New Age Music, Mindfulness, Hypnotherapy, Calming Bedtime Zen Relaxation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5e6cb730767d177c442f93e40ee43e36e40bdd772c710d2d3d904635142b46. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/PLL431542494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa4e4e392aeab7dbd6a5a35242037ba4c32a12e9f129482eb7224cbd20a42fa. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PLL431542498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d139a7a28f19808492cfe2cc614c77627400c082e360f8cbdcc1ba0af012f34. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/PLL431542505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44f6405046c4acc6a076e7b7cd8569e8d33e3e18e33a3858c6c69b945c0de41. 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/PLL431542517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a02d22b340d129e7487b4e834fc6165835a1069cabbf1eafa6a3167d8a6379. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/PLL431542522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4465d0b5d819762327a22ff586a52fca94ee2454209042fe2aca398f637415. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLL431542526.
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