Avenged Sevenfold (abbreviated as A7X) is an American heavy metal band from Huntington Beach, California, formed in 1999. The band's current lineup consists of vocalist M. Shadows, guitarists Zacky Ve
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 0xe4f2374734dafe88d84abe3580378bf4858c64e3c6198e164a43fcfe57bee154. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e7688d1-d2b5-4b7c-98ff-8f4cb7597d3b.json and https://artists.proofprofile.net/proofs/artist/7e7688d1-d2b5-4b7c-98ff-8f4cb7597d3b.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 0x8bb406cf83756859aa10b7aff33c6bd748d1526bd4a982764805cd8e44d26570. 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/USWB10501909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0363ecb3245b86ae415a38252af262ac6c1007b4a9f15a8b06fe831e475f13. 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/USWB10501910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9afbd16e5d29ba01cffe3ea3718612841d0ad96cf5a6e0b3d05267db23ce1be. 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/USWB10501911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565be43c7a76bee959f9681e2fd1ff38b2ae13b35a55c0475528378342bbbcba. 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/USWB10501912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc671d202449a42424e021dc0b316e6eceed9a1d4c93f536c143b08195e49107a. 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/USWB10501913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73778dc81ada6af618472c057aefbd7357eaff6a5d902bb04d4645e6adf77762. 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/USWB10501914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a290cc07dc7cde643a2a50f79e9f965389e258f0c128470d7f43bdf374717b. 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/USWB10501915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5c0f4b1731f0d8ae8ac0557947101d36af223b26a7bef32ddb0b394345f0da. 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/USWB10501916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4fcea545ea8161846d052a0dedd56116838db01a7e1970d8cb4979cb4ba50. 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/USWB10501917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c33f3ab72609e35b078350c3f680e0c26c2e65ed174f74010c7b52e62cf472. 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/USWB10501918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7fe6cd3e0863fc64184470b841b3e3b27be0bf7983f1beab20cb3c4832b37b. 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/USWB10501919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1855955be6f5e683a49ae5684fd781397678453939526a0485bb1afde2381db. 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/USWB10704000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f62017ef00c89336638ff378811aa11e324862b6935fa6748db6b44e0d10c05. 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/USUG11600830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc59ba3674eddc729714a918110844a7a1271ebb3563b5d9989cbdd5fe648ce0. 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/USUG11600826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d5fc7d8ae2cceb901ab807c23da3cdf1d2a8b8100f5a7911af51fdf51ff7b6. 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/USUG11600829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d7c0be87a8279b4c2d0ad09da214c7244a66bc8429e87756a5cb79b6b2f166. 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/USUG11600824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e51b7f971690f957912f8b41c96eef7ec96f520ba233cf8e0b0212ed782048. 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/USUG11600821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53487e0cfab7905d92c653a197a86e09f4e838cafafc2067d0fd30e51a6fb4c. 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/USUG11600820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870eb17bfe27edd880ea6a1e047ea2934d2fbeaa0d5e78a8f2731630922d1d9f. 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/USUG11600828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71178ef94d8382ce204a3068a2c01478be3d3ce5e54c1104af10179d9019fd26. 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/USUG11600825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f8f0ff418137a14512aa561d3fea9725ad71f62281d463fcdd7793bde51158. 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/USUG11600827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90afbfd5aabe2d2e4d64109632b6b2e4ac27ebb449051a0d7a9c7c9d2dc50c2c. 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/USUG11600823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8d6b8ac51a29bc915243402fcc13bd6cddd6e38f857c01289bb16860ba68e3. 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/USUG11600822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505bf1946f0e3a0207e7cc55684a0dc62a6b95a52ed0c53de17b1a104aabb3b5. 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/USUG11700618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c4e7335233ee279d7ff1eb0432054a2acd1eb576386117d8595e27fcbea330. 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/USWB11001149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fed9844affe05e813c4ff8f7ec212fc625aa15d61baac9b919ec8ea97937bcf. 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/USWB11001436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aa71e4cf359f19c5ace16c9094d97753be7161ea1467fef60cb3f02e544577. 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/USWB11302191.