Darcie Haven is an Australian singer and songwriter. Darcie Haven supported the band Birds of Tokyo on a number of occasions, most notably at the SummerSalt festival in Denmark, WA, on March 4, 2023
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 0xc46a919649dfb9cae7cd98bb606d3aa11d445c854775795c73068583b30ff97b. 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/eec724ae-5346-46bb-a8a4-c31e71ea40e7.json and https://artists.proofprofile.net/proofs/artist/eec724ae-5346-46bb-a8a4-c31e71ea40e7.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 0xe8de4fe6e15b8a5cb43052b88da61425579e40ffbd2e92f732ab6d331adda8ad. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZTAU2184730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6164172f06f85aa65539f3bf44d4c8d9e5ffee1738e309a0594823f72626a9e0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:02:37Z), 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/GBKPL2201123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679c8b9449fbe29d9b2ea92c5e115563e29e8d333440fe475ef0ba6243d29230. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:09:54Z), 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/GBKPL2212416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6626045365614cf2cbac4ed635215613ca6445def307dc3bfb9b037b8b8b1f28. 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/QMFME2337163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3679ff17d7e4d224e3915112dc9ebf37490905e6a8c7e710fc8f752343da59b3. 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/QM4TW2405402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f38c4a7e3f83d89a4b4062bfb642f773ffb12be6b7cf8a0f04e22912e6876. 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/QM4TX2460011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1744a73e8bdea7126240fa5c8a2798b325b8d768f018f43440cd3ece8a2b8f. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-17T08:55:05Z), 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/QM6MZ2467449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ab9a80041d4f8c8a3ae596d9d1e25f3d07fa0daaa6c7cd0368e4ae0205cc6c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QM6MZ2467448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ec1336c62868fb9d3c58f361c3aa1ff43b965181417be13e91e89499e2e653. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:10Z), 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/AUMEV2508953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e57452b20b1d2d10bde3ac0c5e9ebe8aa0240671b02e3f7cc1bf484d56628b. 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/AUMEV2582276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e57452b20b1d2d10bde3ac0c5e9ebe8aa0240671b02e3f7cc1bf484d56628b. 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/AUMEV2582276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ec1336c62868fb9d3c58f361c3aa1ff43b965181417be13e91e89499e2e653. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AUMEV2508953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9999c56fbcfb47b9cc2cabacffce8011690855f1bfeaee23adad399d4a1b43e8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AUMEV2553824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ec1336c62868fb9d3c58f361c3aa1ff43b965181417be13e91e89499e2e653. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:19Z), 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/AUMEV2508953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9999c56fbcfb47b9cc2cabacffce8011690855f1bfeaee23adad399d4a1b43e8. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/AUMEV2553824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4899636940bc675c599e17581a1aa548f4f605d353f9dddf74db5c3f833e2aaf. 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/AUGBT2506819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25778256f2905eff106028fbab4919c81af2f432b81285c4fb9f41396c144e79. 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/AUBM02300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25778256f2905eff106028fbab4919c81af2f432b81285c4fb9f41396c144e79. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/AUBM02300128.