Bloodstone may refer to: Heliotrope (mineral) or bloodstone, a form of chalcedony Film Bloodstone (1988 film), an Indian-American action/comedy film Bloodstone: Subspecies II, a 1993 horror film Gam
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 0x52db26e61c68672e5208cab080d4cba0b0b0d2fd42e86ca659fa0ec3a082ca68. 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/46ecd1cd-7803-4bbc-b3a9-de16f77b5a2c.json and https://artists.proofprofile.net/proofs/artist/46ecd1cd-7803-4bbc-b3a9-de16f77b5a2c.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 0x58cdf567e4b47f4173dcab70cd4271dd9d06845f78a41f27285c0ad9c4c6416b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USRH10450056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801ca7c2924986f8d154f070549ec6bef1d7109f672b64cc51e505ca1611e1c1. 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/USRH10450042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf108131991fd6076b290a5426ccca3005778bb4d43254c17a40df5221c434bcf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USRH10450045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a5436b2466143252a71e42f2a1185288251eaeb7ec3569d4c7ad19480a5a4d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USRH10450048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c0734a9c3d243069aeb6ff495febdf24e6d94714a2d15c520ce39f6565f89f. 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/USRH10450049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2a8e8e853be26b5170c90a3b44a499d7c1f5bd33b40a29e3cdf8114391c047. 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/USRH10721804.
Train Ride to Hollywood (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbfe5150c14be04f96122aa23a1e6c977d675a86e503428f71169fc9098238f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USRH10721794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e257a3b48fb5eab72e43d9547acb22066c78e278b8aed7f65facef097bcf8a4. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USRH10721797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef657d0a8d2818cb252d62356aa7bd3d008fa6720c7c238cc76693e9c3bbbe4. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USUM70504986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204ab8eddcd52f9090c154b7196b26bb7fccb84f730bb5dfd782e35571d9c637. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/USUM70504987.
We Go A Long Way Back (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9e9333eb06b9ba8ae289ba3b4873b29cf28662b3a3af9b254dd7ebaf8ae1b5. 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/USSM18200585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7377ed7d66922b63c25db811b2d3209b79391a340613d1718edc30eccfc043. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USSM18200584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bb5b283f6e665428e86ee2d79348d039741d0afa28dd1088a0b5f4e5f219f7. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USSM11205764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8014a11ef83cf86a16d8ce335295c199ce129eb4eb7184db3397e2d0c16b58a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM18410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f389aea80f7b3395393ca4296c99e239eb7ea65a9d6dbafc54fa7b39766593. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USSM18400524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6741fa06d4a87488f7c40d8cd36df5bfb25bf30a99c1c756a611a7ec6ea6ddc1. 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/USRH10200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35726882f3cfbd8908d4ead1174a77af8b35b659f1f9813423dd14b6cdf7bb2a. 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/USRH10200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e475402742b85d1ddca0e97a84fcfc09cfcbbff71b53a4e983d6379b436830. 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/KRA592300624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3430b083e006d2d215ffb2b1d3341379c8d7623ca78b87f5cd38f3cc0e10fb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/KRA592300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972e97b38bb3cf93e61ef35144273c698a35a6402cc87574d7dbab808a4bba93. 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/USRH10200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08790d1bb19c80fea0825419b9af7547e159aef2c1492b4f52f380472f9e6826. 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/USRH10721806.