Anita och Televinken was a Swedish children's programme starting at in 1964. Televinken was a marionette operated by Ola Lundberg, also voicing the doll. Anita Lindman Lamm played Anita. In 1969, co
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 0x79098bb1474d19f6c19d970c4f8087c6a7300daec5ef625ac065fbe567e25508. 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/1265c0c8-a4d7-44b7-9c7c-573861d4d822.json and https://artists.proofprofile.net/proofs/artist/1265c0c8-a4d7-44b7-9c7c-573861d4d822.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 0x29c492b0b35a0ef30be98c08a487724e1556459fdfaf4c7fa5bec8cbd822a968. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SEPQD7012010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d54f28f76ed364252c38861e494859e8afbc75a47dc66195e800dd28a7947e5. 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/SEPQD7012020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268cffe5a07228f4faff72c9b791c1ee68fed87f96b812580ba0051e9b6efcd9. 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/SEPQD7012030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34136ea06c39c3a180aa21978f361ace5c0ef8284395c42b811c66b3e261656. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:09:15Z), 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/SEPQD7012040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd807200bcfdefd61cfdaf8d8b0ba64e341f996617b6dff335fd8976f9b529d. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/SEPQD7012050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7224c6d15d410707ad0cd9c63a4998f8059ef57c5024d96186da2ab6aafa267e. 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/SEPQD7012041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf818a77e68a5914a504436c960b26cd444ad1859817e54d94a8d99a0256249b0. 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/SEPQD7012011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cefa94fa9f3244e24931264c2cc8cc6c234661ebb6ee4661d0277db84ddc5e9. 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/SEPQD7112080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cbcdea23a8793326fc9b2b4bf1c514f26f67af7243087267ff405827874346. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SEPQD7112090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8191528e1d9b57f6f25a1bb457441af6423960b7dcb540b31adaef4c43bd18aa. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:27Z), 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/SEPQD7112110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5885db10e6bba09e27ec5f6daab4aad383dbdbc9e204941476959b9d113c9514. 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/SEPQD7112120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd8487c6d19fb5d2c9572317cacb41bb9698c0a655bba822b68944b438d9fa5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SEPQD7112130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb184d10d4dbabeb564072eea61992dd689ea58d184e4b132d4ce5ff9177581d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/SEPQD7112140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e6b6ee637659cf91b5aca5a88ea2e58a0e4aa676f34dd0ba8c8d7eda0f5089. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:34:33Z), 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/SEPQD7212150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bd3bc414e21b63b48af656685cc4895c94279e7ab88f3772175bd29c74bdf2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SEPQD7212160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9ae7a6ecf3d74e8d68491a01fe0830e140c9048c1e0e6db55db217a2e75e37. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/SEPQD7212170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc02daea8a5e52434490dd74bc26ece5379c3579daca1423518f5153bff771d7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEPQD7212180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ff9faba6752bace13abcd3829475d7dc24946136b77fd6042844b84fc9b231. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/SEPQD7212151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2b7ab1b09c321af58ae1c5acef5576aa79be326c22bfd0d0a803ef272b8b7. 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/SEPQD7312200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561ffcb07dfd1b6d39a587394ece0ce7ed4826483dfa7713fabcc0e8ac1986ee. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/SEPQD7312230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dc214bba5c2166154bc8e38fa1e0bf9cfd4ac9f014060bf65808aac84388e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/SEPQD7312250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9954feb1e8d8ed17dfaaa7c39ec128182cb817f76784e7e15bbb9abbf8d7c325. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE2YE1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7346a6d5949acdaa2d88ffc30d72d0353cde714613fb834d9f4075c93a2e3f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/SE2YE1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3334c0813882b295602d40c6ec487abcf7d8f42516734446d9d6a5659c956b41. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/SE2YE1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056303f0aa681ffc957cf89cf53b39628bacfcb4dded0c1333c69e957bfe2ef0. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/SE2YE1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604b3e2a3beadc07ecdec01398fa9ce7df0727c9ef343c497e03aa8b698f49f6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:35Z), 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/SE2YE1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a287bcc5f94dbd3e0b40b816d28f01574524719d6c2573b2de33032fb1572a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE2YE1400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305aa3c67fe075938a88ba16ce9a23967fe9e9997d1552c59526d4553ac7bba4. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/SE2YE1400023.