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 0xca4f4d9bc271147fd0bc2afc4a3a18c13a8d8b7884dc570b6c9283e480f16335. 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/64a6936f-7f3f-461b-96d3-7820c98d35ea.json and https://artists.proofprofile.net/proofs/artist/64a6936f-7f3f-461b-96d3-7820c98d35ea.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 0x5988332c72340ea628b69889a452d497de17c2aeb58867dc83828ee32a7a8e36. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBUM71706121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254a05b07e9bbbeea5e884805fababbbecd68665466c4001a1216fe6bd4170e8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/GBUM71801940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3544780198274632a6b6843b089b8abce46cdf6cc3aba1abcab5caea49e58a17. 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/GB2DY2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d10527033cdd549566b3a76cfa7a835ac2083acf8cd48c06f90c89113638d3. 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/GB2DY2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18862ce1335cba03447620bac60bcf3cde24001b01c57d22bbb4e68b91146409. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB2DY2100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06853e335c59394b3e7db887e19f283b677629a8a2bf218fcc84dbe23577195c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB2DY2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c733476a9b1caeb0b919f435dc6b55023a289f31f30da9f023d938d9f36c0c. 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/GB2DY2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a146e95ab1050b6ff23ceb8fdae151b1cf7ccfd6b6293ac378bfcc89be5b6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GB2DY2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c7ad7c48af52b632d3dcf87d452947cd1e5eb38b48d49bde21d13171732dbd. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GB2DY2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94ae3ef47115b8cbdb03d670bedfae2d3da3865d2ebad1c177fa640610e706f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/GB2DY2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b2e5bb05098946ad7c5a214a5cc5ae0d91073f185609ac42c597bb7a25a74e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GB2DY2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf47d170a3fdae6f679b0fd9b3e93da74b174c172fe3c1d8d29d31d2d919c47. 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/DEG931901749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e49dda07ab02047fbf879b16865c67541648f00d478454eaabac7830abce27. 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/DEG931901751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f5bba80cc7959fd9df9783e8ae9bf75e846b6d4881e8027934067f49e055e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEG931901756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2739ad02ff739092af1b0f90ce0230b69bde19a9b9954b238d13861b58f2e52d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEG931901761.
These Days (feat. Jess Glynne, Macklemore & Dan Caplen) - Mr. Jukes Remix
These Days (feat. Jess Glynne, Macklemore & Dan Caplen) [Mr. Jukes Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295bb92e662a6eb0854c6fe4cb86149fb237f2fc5f07d2d6fd9f2c7872c95f28. 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/GBAHS1800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecd29350b0755b601f383e09a3265190d6d7adebc99b1f29213b8a7372f6598. 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/GBUM72002341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8721aba28d3e99899ae895bbfdd2105ccb8e138f6b9dec3bb0b0cdc5513b53c. 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/GBUM71700849.