Joan Constance Bartels (born May 21, 1953) is a retired American children's singer-songwriter, recording artist, and occasional actress based in New Zealand. Her 1985 album, Lullaby Magic, was certifi
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 0xb9c0849d5429b5cf5299d434c8ee184c3df3cddefd717d2c2aab18ddc8083d5c. 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/e590e66a-3300-4183-bb33-47c34bcb66bc.json and https://artists.proofprofile.net/proofs/artist/e590e66a-3300-4183-bb33-47c34bcb66bc.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 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 0xbcaeda6abc64ad885e76ceaf75be849f0106af1132f4831b074a6d73caee1347. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USA820400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91aec602f4c610f41df948f730f4042b33a4f6a77af4363be270ef6b7b636a8b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USA820400288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633f5e856f44f2df3be4ac0e81f66a3d6fce8953426438ede8e2a26794936c22. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USA820400289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfafd7f5c977ef6695f17e0ebc90fc529321f3ccad725a987fc89c959152bc4. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USA820400290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f37925c8ec0d49ba3025fcfba70647f90f5a80d9ec823e20d250bfb9acf0bb. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/USA820400293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4717d84dcba1d3899a5d297e97c75e22631971cc7e15aaba6c388319621c32d0. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/USA820400294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06907a90b0736ad4b804e7d749d832928a3247e442b64c2fcaf05e8591dde468. 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/USA820400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f62f75aeb0f5c9e1904ffa932b451009407b333c3af614ac7f2531ded09bc7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USA820400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d98f9e17fd1e83d8ceb68448dd774971a9e3f5377adc1861e1dc6e57eef6616. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/USA820400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95cb8d2991b86c7cd94467bd78c5a27f493bc535a5ff9165077d2c0156fd3c8. 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/USA820400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe912f03c29bcf2ca0d02162d54f3f168ab2b0a09420e25119faac6142f5616df. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/USA820400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b87d3b579c02b16195ddd62bdd52673d5a1b7620521f3f2916a78487685e863. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA820400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c1da8ba665d110b5e957351f6eb1d5607dd631656dfce970372a81f2983997. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USA820400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8c539c92a0d17415ace1c61216266d197a5036a8304f35a1f290aee353325b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USA820400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eae952d7c6c0cfac3d01b79ea20d7fc364959e892852b3f9616fdfa10ef17a. 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/USA820400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576255aa3241fae1737d4818009a02eb686e2af2c97846f36ab3de25c2dfbe5c. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USA820400309.
I Like Bananas Because They Have No Bones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e347538bb03486f398f56e61ca23ed36793b265394eabfbf0af2e4950fcd5e0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USA820400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed4ffa360a2fc5196b501d7deb8d77bd652b249e74763566be3864d36da1cbc. 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/USA820400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa717d9e64806ecdb19ae699e27178e7139ba3cb5f8eca6571e741ddba5ef43f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USA820400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cda8ce511e08ac462c7868039948c14feeeb36f0877aa1f3ccce6fd64ea66e4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USA820400337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb475f2be558dc76ce23c6290d53f1fe82058a561c3930881770974bcc12f4e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/US4R31244185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68257580f733389ccf8c4aa37e7d202b1fbd84f0963e5fe4ef939e132100e0a9. 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/USA820400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5e984f886eaa34522bb87c20c826a1542cd416277ac28fa1359893acc7e739. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USA820400318.