Blood for Blood is an American hardcore punk band from Boston, Massachusetts. It was formed in 1994 by Erick "Buddha" Medina and "White Trash" Rob Lind, drawing inspiration from the hardcore scene in
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 0xa19984bd2d76f7fbdfcec91a35bfcb483bee392071998e87ab22de4530827335. 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/18ecb19f-d24f-4e11-ab9a-129140d8b003.json and https://artists.proofprofile.net/proofs/artist/18ecb19f-d24f-4e11-ab9a-129140d8b003.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 0x558caaefa3919b205e3b8619ffb7ee35f310209883cce1f0a553aad2a2ce30e1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USVIC0422603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23005d5809a5394b742873afd2098dfc4b4b1853484d824c041fbd5baefe37f8. 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/USVIC0422605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bc078b18baa8133ca3590db33928c85979a1cbd430e6e19503baa8603d86c6. 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/USVIC0422606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e4be8e2aa46ea659ac102926c52890762d32aeda17d9cd1586731e56506906. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/USVIC0422607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858bfa21e313aab119726afe32283200d4ee5a3c8c07489078bf54fc4a2d8796. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USVIC0422608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179a36c47d4e5acab623adf8fd21c8a59207d68fad77d1eb18ee93334f13e401. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USVIC0422609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019e65e6aadb0db1442963497c8c17badbb79a5b1c88c712ae73d0fa616b06a7. 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/USVIC0422610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea188a67155528dc1cf0a768d4ed2a234d2b62d42c3b0ad172281e3aaea7629. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/USVIC0422611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6f89abbb0fcff0aa737819cce62eab2b201254f3b6bb663ba6dae5509854ce. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/USVIC0422612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fef5f879de84fb9c9a4d6d6600f1001691e308789f7ffd86ce675298eafd8fd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USVIC0422613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee11f361b724a361687cff46b146ec3f7446aa8920d6fc2872d07904da5cf6cf. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USVIC9807801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0b0fd5a0d06cdc390675b7a2ed00b0520e36e555c1003b45d700464fedc0ba. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USVIC9807803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c32ef319f385e6754897a2b2b8a926c61bac6dd167ed4f13000a36ca3eb3dc8. 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/USVIC9807806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf697eb3ef71ab558e72c6313999bb06392684079592e5e96d645fb7d6743310. 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/USVIC9807809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4008e3adcccc3c2bd1366e4281cd6c149d7912119c548b40972fc4a63dbe53. 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/USVIC9807810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dcbc4dbe4db787f8ff775254da934127e145e5bc5859266458bf8b75ae2ec5. 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/USVIC9807811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ed9e9a9ce6cb53ec7c7643b2c2931342d7c4447f55ae13ff475b96ae5ec6ea. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USVIC9910205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b1c4896154d239b8e948237f88030c21c6779266b82afee74613b03bdcfee. 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/USVIC9910208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9487ea02a5e43a8ac334dacfb7de6023e4b813dd07c03e7275b940d6c3b7e1. 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/USVIC0115204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4214a2d303087f4ea69e61d593b122e8ba261045be890886a8d4d2afcf3ad51d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USVIC0115206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04899af1ad972721201e684c267ae7b47ea0334a272c8b9913d690de7c014518. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USVIC0115207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303a8c4231f2b8ae7a00fc676e4ca9430f93dbeecdfc516df391057187d67a87. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USVIC0115208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95be9aa50109ae4b6ea04e9bd21150a758dadd7f3d6f0c41271bb32af49c6376. 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/USVIC0115209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1deb9a4648ff01471e37197f37a5e86e755be4b91e24c4b9c29bce1aec952fc4. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USVIC0115210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd8a9ab534bc758869f736ce403168c7dbbc31255a96f505483c4dda15eb0fa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USVIC0115211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bd61da9cab48fd8cac71d003e451c462f26910459b9e9315cc51aa90fb3a2c. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/USVIC0115212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45135e2d51271f9cc153cbed5d21559a2b160f1deffb7a90dcbfd7e22780dc63. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USVIC0217301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62def994c33bf17efd23d59a1ef179021bafcf105773229ef04dcabe993ccf4. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BEZ100400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca65b063aa7b75697ca454258b9c3c470b21ea472b6f618f6735fd38bb1a7bad. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BEZ100400710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf71abeeecabdcdb96191ad74ec435a3e20188ac3387dc1f2c1ed7a201b0fff1. 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/BEZ100400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8484ec8a4876b2c9424034c7f99994de01653939c6a5c571e4e8bc3e3c7042a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BEZ100400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90423b263a856223d579b8d29b4c5d61c60d717868c37cb521fe458808986d56. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BEZ100400740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3430bbcc76fce53386f805d7336c83af43315b3df87c1677e642f11edc861b44. 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/US2U21004003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc657d862d76e8719f65df26f043eb883d23d30afadc596e5b8f79d4530ba1d42. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/US2U21004004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdb31909a38459b5ec9427ac1223c4fce714d568fadedd5b34ca6d6cf79612a. 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/US2U21004005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb306236509c320f915ec1c9c26b16401da081a2d567cc0cfcd6bceab768936c2. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/US2U21004006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a074f8e61ba0beb5fee3fdc93cd693ae60d74602eb4e4a8aa5fe833fc79dc8. 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/US2U21004007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d339f34463071fa819d14dea2c3f0af1235006f75de60d7a607b8a6113e6ae. 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/US2U21004008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3622c561ad26793548cdb753de76968fb27aa2d8f13b32f89e9bbe54149323c3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USVIC9807912.
The Worldwide Tribute to the Real OI, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52655558870eb16207c58ddee7c73475b0d7c03c100b3989709220e3b117467c. 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/BEZ100000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c35482b19732792eb95eb86df4f2af5f8a3b74bcb60a605de337b18f2c1ae1. 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/BEZ100000410.