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 0xae505e6fe2b7ce24553678a75bbc7e8c70eef5b9b1bdff3605e9db0ee6d972c8. 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/ce5162d4-0714-4c40-a48a-f018de8bf700.json and https://artists.proofprofile.net/proofs/artist/ce5162d4-0714-4c40-a48a-f018de8bf700.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 0xe8b632b4384186b0b61b519242b8a17f3b4e85d68f04b4157c513d1c27cbf4f0. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ISA109201902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5b041eb9bfe927187019f8cc787c368abd8bdc1551177ecc480387a368624e. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/ISA109201903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761fc00e79d725282b50d1c8592ef25263182925e375898322fd320602cb30e4. 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/ISA110506501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa29b3e5affda7279f796392703a3d6f237bc644eb02238205bd8dc6bd6c8d9. 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/ISA110100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce6fada7325d121585d292b8de28aa01521771b8ae48bce3b295425d301b306. 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/ISA110100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f8e74c17e713b431c03167d4303a70a67e1aa6ee98ca1f7c0d25bb36dbc68d. 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/ISA108900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7b0ad87438c062b562a048fdf9d4dade677f73b3c52a424340b6acdc248bdc. 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/ISA108900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9adfb12fbff789a5be36e5ba17d93f761d9da78a12721acc52fc93416ab4a9. 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/ISA108900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225f68bfe6c9c72c4963b1dcf4e5d39a5c57ff8d5176b04ebb34c8eae1840eec. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ISA108900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe602d7de98957224f6ac6b2a8d93b1760d247c103b5131da0a9a5702285693b7. 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/ISA108900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbb9564b2e99ea06f18196366c585beb748dfa49537f33209dbfdb5c8329b12. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ISA108900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daeae9b2a0dfea56d2de558cc11d9e649e8cc83c2faa7b8d9f40ba05e2fd165. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ISA100001406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26e72bbc18b08c5134cf8b1f7af707e8bfac165b7f753306e9019cb26d4d1e1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/ISA100001410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc0a905727645ac39cd7684c166895b2a9a3c880f15d21df3f855aee820efb6. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/ISA110100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fab8e92865c91b1b5e619814778f077129b5c7226bc18512c47e93256fced26. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ISA110100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84421eafded766898e3226b01667878e7f86ca86687bc5edd41243553f40d5d1. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/ISA110306907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b84f3ed5949ce05636f9c746cdc0692cb1f696c93ea6f7e95cc24f8e098e376. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ISZRU1013267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65eac6332931dba798b3709756a243d108aeef55688f253ca3656b6ec8d533bf. 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/ISA111203206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee42c6cb54dd9b1c17ef534d06dc872cb4c9a625e7d5471946402862a0c2a945. 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/ISA111203208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71daf218e5b6049001804e6bef297f7b8d1fdfdd6f3a2b0468738cd875d3e83. 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/ISA111203209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede2369dbe45db98b2679715f01dc68e042a644df7d2cbcaf4c353d2e9d430f7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ISA111203211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46604aa36429f4ab5eb4ab851fae49e21fc96d8262a007655c2314ad572c09a5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ISA111203213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc14096d00d09ed512f2e54c043d98d6a3b0f1038f4418b0392a6a6f5de71458. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ISA111203302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4f1fbaa5505dc48d7e7281bb637034857ff11a504f73c0fdfac361ab012e0e. 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/ISA111203303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbb98342a227c0919d68f31bcc0af82eeea18222e3390d5e1b16b95fd38f641. 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/ISA111203304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc0f2db58c18873663570e29ab52986e08833ecf8e94f9f06bff3a43c516faf. 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/ISA111203305.
Astralterta - Með allt á hreinu (Afmælisútgáfa)
Sumar á Sy´rlandi: Tónleikar í Hörpu 2015
Sumar á Sýrlandi: Tónleikar í Hörpu 2015 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594a3f4e01e8df08bcf6976dcd4e8cd14ae2f558af8abe09d2a793d8b86f3a23. 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/ISE100201303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045ab203d9c54edcc8d31da939b05064e80acf4455fb7cdc6723e48e099f5b1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ISA109800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4951cf8a34a85cfd63e957c466dfa98dc7307a52cccbea41e1797a14699ba147. 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/ISA109800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac54c4035e6332940beda3b379937ec128e7a521f7cd8de285c32240ab239cb7. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/ISA109800403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06297ecd3df89b13a37c74e6bf2971c97d0f532160753ac5cea03888454278fa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ISA109800404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1113149949ae405bac0320c3f8e7235383da7ccdda2c1f00fc76ebecd9f6955f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ISA109800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d2c0fae316b53356c82b943c6b7a6d691e4887043755090e0940bcc361b01c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ISA109800407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44832c65a0904ac8b5dd5dd31a90c6f1eb5921d85d210fc199605e24103383c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ISA109800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849132806fddad32e33f1874bb0ae907ba40e852c283b2ce9eaaf2f9b5175226. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ISA109800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb014d2ffc1b1ee8dc21801d7dd8d718ca354a0ba8bff24ce349f0f6a89d1154. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ISA109800413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958905716399a381e8a8f4acb0b880ee54ab07a2dc6bc615a08a20351d11bb82. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ISA109800416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93884d52e63ed34a01e3a6fcb81706a85ba9d71bd824c1e08d53682ab588d546. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ISA109800418.