Wayne Krantz is an American guitarist and composer. He has performed and recorded with Steely Dan, Michael Brecker, Donald Fagen, Billy Cobham, Chris Potter, David Binney, and Carla Bley. Since the ea
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 0xb2e514c6a4e62dbae54b3fb0c26ea4fa092f61251d07a4466dd9d3e06dbf31c7. 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/3f9f06ce-12ec-4e97-8686-3cbc24fa6eda.json and https://artists.proofprofile.net/proofs/artist/3f9f06ce-12ec-4e97-8686-3cbc24fa6eda.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 0xd911c29342eb9117be13a560ea709e74d8b705001e573cd14e1c6b21c725edfa. 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/DEA590204302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128cac0370042b59355b080eaa00daec33ba247f155d60d7d2ffbb8a63927210. 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/DEA590204303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe762e74ed064ba0a612f503db8fc7867032d1ffe15efe66b4859f4d77d132bb1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEA590204305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c053f475889de7137ed2ae0d03969ca2c7b6ae38869de903fabbee4a266056. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEA590204308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083bf92f65c0bd49b372650f2a766012195762105910126c24e82eee6980960c. 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/USJQK1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa451a0e5db5da04b7e9dbf4a0f9ff1ede1d7a2fc0860dbedeb959676031fafe6. 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/USJQK1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e332b2c1a9229fd81f70f59faa0613ca86c6dfc7209469a270b4181c2a43fbd. 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/USJQK1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05139385a57c13490515bb92c4d3d0452afe1eb3de547fb8fd7d7af62af38032. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USJQK1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcafc41836144029b91d0d4b940f9c9b6ae24928074d6b1b801ae3205d3a45ff. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/USJQK4700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4afafcc768ce6ef9ce86cb9bfa2c13735de5e050174fb1163201027d15212b9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USJQK4700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6edd02e7895033d331450903428e00b900892c76250dca87f8fb73cf43bbde. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QT4UB2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ec5de8be1c1827a4782fe19e9710682fa727a41a619829398f56ad7ca47d7c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QT4UB2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed5107e4b181ae8dd40b9c474fd49c405b543c292e87adceb9c63cce0447362. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QT4UB2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0911fc1e6e245f21dac3f843bd54d9e14d0a73ea41c596d1d0b40239d3cc5db. 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/QT4UB2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c878d4bd782b754d3c8b64eccefee77645074773c8cc7cf6c27b106522fd59. 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/QT4UB2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc36b2d6475436db91f5917f089bc5f8b1b8a4244b24d308994edb8dba01274. 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/QT4UB2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6506074012e5a41cfc1a66ded2e405e028df2ecb3875cae8582f5d4d3d92e100. 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/QT4UB2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea4920442397472ed3172d828fa49a5457e905dd1e5585f5fd5ff5bd6ea510a. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QT4UB2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8021ae16ef0b1efff7ad4ddcd31923c605d87e7981fa69763b5fdfbe204657a9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QT4UB2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc43c7e70bb258130c6aa846cc2085cbc4bf7bed3dca30f573774756fd6999c. 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/AR3PA1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4a05628265dcf6cafadf55b193fe43f3a99c693cae03442a26d7ef0187a9a7. 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/NLGZ21400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cddf19f7b142f03eb49d6dce927d51227a944c3e3c037376f1502a106db5234. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLGZ21400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06877f91ef116aed41e6b99bd4257727a05bb96cd9106537216ca782f7ccd2d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLGZ21400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f3a10d8a4317cb2b7b21ab3e187c1d0f527185579a705608de3507b73772e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLGZ21400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259a018de4e6fe69c6da0b6007925924b4fe1b9dbea6257bae1f27771c6dcf3b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLGZ21400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286d862550023dea341cfddf41c29adc63219a47f8d72f389308c5cff0ceff1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USEZT0610243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4514177107a0345e32e3004ba47e08b45578c8549a25a7ae5245b5eeb187f5c5. 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/USEZT0610246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc43c7e70bb258130c6aa846cc2085cbc4bf7bed3dca30f573774756fd6999c. 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/AR3PA1900006.