Pelle Svanslös (English: Peter-No-Tail (film version) or Pelle No-Tail (book version)) is a fictional anthropomorphic cat created by the Swedish author Gösta Knutsson and a children's book series abou
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 0x483d86ef8dc8ad71738a6c09b59b8d25303fe765f24304dd890b04b323264c87. 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/8ef506fa-7d39-4246-b731-b8da881c19bf.json and https://artists.proofprofile.net/proofs/artist/8ef506fa-7d39-4246-b731-b8da881c19bf.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 0xf0b71aa4437399b82782a7089d401cdf22e242ed85a9f85a511d1b2be5e464c8. 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/SEAZA8201010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a5e578d3f0b71282f5557735d17da5dc90887d03f195caf8cfe5dd2d9cd163. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEAZA8201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94933ca3e54cbc3faa03b1542b51995088225ebbeff495a41bd1573005202ec2. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:42:03Z), 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/SEAZA8201040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6625b36f884310c9d74e45a78efebcec4535dadbb63ff63b68557be21da68d9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:14:20Z), 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/SEAZA8201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48312f84fac5696a7ece968cf2bc4325beec4d7c192f7d84a183e1083cf836a6. 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/SEAZA8201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcb3bae08a356bc4547f5876d4c0b392056628606bfc4fc42fe305a0e124271. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEAZA8201070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ced8875655cf92daa52efbf28a9c175ce4156a4bdad811e22dc14bca3fdc75. 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/USQY51043727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc459fac512a48667396869de5f6b0ab49e610b0f00a38ad9fc0ae3940700c21d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USQY51043728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc4c14506ee4eaf0a4d88923cacf59a46ca1b61a6a0123856fc4b599478a78. 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/USQY51043729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134a29c0d24f3e1bdf7757d30efd28faebbf63a64f4904edf9de6f8fcd6f5e2d. 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/USQY51043730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2431374982adb0ff60e3a3a797e46198b203750d2c6ec0f3307588ea770a4df5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USQY51043739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c59f9065d49947a0adab0a7cc043dcdff46aff153a3b6ea45c28c586e5de2a4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEUM72000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb994f6ad202b3f0f13ef7af7c492f5c4a44df7def59305928a760faa0fca862b. 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/SEUM72000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e60906b290c139262f0b3533b85a159039df483a15fb5624340fd6e4b2f26a6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:20:37Z), 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/SEUM72000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed6746152a437af39a1312cd842eecceb919b2bfba8fa74f2c0c5c551179bcb. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SEUM72000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ac55adc9ec5fb189d678be3ac1b47060b9d984f6feca993b1a4eb0d938b2f3. 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/SEUM72000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a20d733e664d5e59a0c7d3e0f409ecaada785407c7e370e6d23b67fb05c591. 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/SEUM72000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12b7c3de015291b55b4fe63f3cee9baa2432b964ecc74250418a171bbe764e1. 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/SEBGA2400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d630ec606ea53ff82d99b6ca2a935d312e2ca302594c390cafab851803ada96. 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/SEBGA2400850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaace954fdd071ce5d1aea8b4b8e9d84ed72b822309074848b527b176fe9016a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEBGA2401704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913225b17abc37e66944b42d600f2ac90fb794d51a70d9da814db8bdd597f0d1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEBGA2400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5e6871b09e11b7cdcc2e1d42d78689bfb76737fc67bfb784fcd5bef6caa630. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/SEBGA2400942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18c0ba8ab3cc389df9f66962ec40d7155baff3b3493860ae443f7b92c722723. 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/SEBGA2401007.
Pelle Svanslös och det magiska halsbandet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7f4f7a4874d2376f490764a85465d83cca883c1795f03cd02a6b1d868b9083. 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/SEBGA2501203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d609bc3e5f76ab62e21a02b0adc66dba25908fa1360b5c204c0cdd8fcef59a. 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/SEBGA2501204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32682e6bbbd29407657672863173aef432173c63c3d2c297b69cca50cc104140. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEBGA2501205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca6bbf3b267eb94be709cd978c709ad50d445e1f84e29ac4c27f4c5d68de8ef. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEBGA2501206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34852dbe0ba7038a7ac0c23c465f4b05973ccfca6ef56035b62666eb5e7f0117. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SEBGA2501207.