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 0xdd904dcde1ca4f5e5a8ff1c1db23fb63531b9c3d7d1db4e2913c8c9c8292db95. 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/b5308401-8b11-42a7-923a-53fa98a7a9ee.json and https://artists.proofprofile.net/proofs/artist/b5308401-8b11-42a7-923a-53fa98a7a9ee.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 0x5bf73edeac0a5e91b732d593277f0192e3018b6002a31ad5c79e46d4dcb90ce3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEAYD7523100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6439b27bf03258cab834fdd284ad6945bed5decc573738adfd182b2f2735a1a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEAYD7408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b74be503295514b044ca5090ec503841f2b21e0d0a84613bccaea31041ca8ae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEAYD7521170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba81a09573fbc8f37bfcdc5643adaef3eeada1493b7c17efd3e8cba12e6801cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEAYD7621180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e370bac27a109ed2cef7c35005193b4eed9e8c3edc3c3b87ca84b14728df5d0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEBFO7302010.
Är det konstigt att man längtar bort nån gång
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa1c62ccd88aa99d2dee8f91248f968e2dd83880e27390c8de6abf7b4000957. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEAYD7121100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c8d73fd8fc3f756494de9537bd5e771ddaa807bb0a0997d5b7ac7ea4307255. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEBFO0400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86367682dd0969fdf7f2f32d8f7d0dfb76058ae5020e30d458bc2e65bdc5ea42. 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/SEAYD7121120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb23d3a2899c46907641b57c884f5649b540c31fe3f5f83341c822a750f1c51. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAZG6725040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378228254e83bffa404e4b8aec06b3bcf70656a4dffa13edce9a121232bbae46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAYD7614100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f40691c70a18426982bfd9854cf84663feaaff9adc0353335aedb678be0fe3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBFO0300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8bbda7a1d75d06ea102316e896cca46be34c68187482879a077f7ff8a9943d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAYD6921130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4bcbf1679f88df55835043d66f475c5cced8b1a5274841764261062947dbcb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1100304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74c3acbd5d613eff5e17dc9dcdefd3bcd66b54b4e2853d211493843f6167d1e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cac452962606a240b91d65cce5428a01d4429c0ee392bd7b0b96c307d155f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKABA1100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b2ce406f1026f742f65394de20acb294327b0d36d3d01998a5bea9fbf4061f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:08:56Z), 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/DKABA1100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f182961d0b4f882627eb0cdd33f8ac5836fcad6cd153fc69b9dc76605e82198. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKABA1100316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218da366e30221615d6d904ea35e47858c3829f902251161f689c2a111ea664b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEUM71900286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420ab869ac4258a9c88dc81d4ad5a4d4b43050614961d9cde98d9a750ced28e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEBFO8013010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b200785faf434cd30a30a6dd4920ce0ea7c5289b5519abb0fe13e3db8f4a837. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEAYD7807020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f54e9494cd0024c57aa768e918d45a11980956044eb83fb12c8a9ad827c2bd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEUM71900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf73edeac0a5e91b732d593277f0192e3018b6002a31ad5c79e46d4dcb90ce3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEAYD7523100.
Hur ska man veta att kylskåpslampan släcks?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc93bcbcbf0b441ad3302e5049401bfacc7609543c8d8a2d0d35090859d07eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKABA0510009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74c3acbd5d613eff5e17dc9dcdefd3bcd66b54b4e2853d211493843f6167d1e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKABA1100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77931fe3029388dc4d8a9307578bee4246dafbdc78b2c9ddbbbad6692bf6cbc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA0510109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726628faeebc2940b7bcc4ce9dce3b2c6d7783a9deebe00521afff651d8aa5d5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1102097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab906be6953893d70e5bb683d8a27b73a5f67d15efe638a6e947909f95cf4d1. 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/DKABA1100833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f012649d09206d3278f4a73e28d1e791f0f03a90536b918b6cdbbe96a3bdeb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKABA1102104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6046313ee6e83e68e5ec4df19b065859221963215a93a1b9a45c49d4267402c8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:16Z), 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/DKABA0600898.