Macadamia is a genus of four species of trees in the flowering plant family Proteaceae. They are indigenous to Australia—specifically, northeastern New South Wales and central and southeastern Queensl
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 0x145ce066e747687f12ada632e662d054db5eb9662ed5faf37b585b69b3538215. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1708b49b-f613-4cfb-b04f-057a175322e9.json and https://artists.proofprofile.net/proofs/artist/1708b49b-f613-4cfb-b04f-057a175322e9.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 0xb60f8cc5ab49e46ee8e63e7a165e5bcfda3850a2bac00d3795c41d52262b97a6. 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/IT9PP1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb800099e20d42734c0ca12acd0535a3dc917388a1836d2732825bd34ebbf72e8. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/IT9PP1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa922b3ea716f5a0a35f8bf08799b570b4dc0c337d46b25c2c7e40991db37bd46. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IT9PP1900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71105378b6b2d42c9d97d14b0b718e7d74cddae6aec553c57861b3bdbcd98438. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IT9PP1900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c92d053951568fee375d8422ebd8c23cd84c57e2286c2e201a0ac892261e635. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IT9PP1900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86254b7e28c7c051ae70fe0eff707552f728673652dbc8234e24a575fa18d4c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/IT9PP1900193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cccbc75a4da0949ecfb1b265374e2f4847e5c8962bccf34cd9be554bf28b441. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/IT9PP1900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1aee646ed5498ff824b51b1207f7aa945cb5e1072d08a31be4b36d12f8296b6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/IT9PP1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9e7abeff0243ea6f0d21166c4086061d8b342e559d6313e9c5d2537c44f34c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2466145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24237fbb281f083a1a2a0af8d812724ff82554fd0b60f4e4d3bf4b8aa7877062. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBKQU2466142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60f8cc5ab49e46ee8e63e7a165e5bcfda3850a2bac00d3795c41d52262b97a6. 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/IT9PP1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776cf82155a3cb18f7ed10e475c874b52166e294158e06b904a20c03baff76a9. 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/GBLV62407595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc341ca7020e1cac4fef87b4e24d957a411944f7c5fdeec67d9cd0828e6237403. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBLV62407596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa134a35017c5c16f7c370f1c6198efb612b85121463a3de1c98b367f2eb3a9d3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLV62407597.
Nothing But... Pure House Music, Vol. 30